A balloon is rubbed against a student’s hair and is then touched to a wall. The balloon “sticks” to the wall due to

electrostatic forces between the particles of the balloon and the particles of the wall

magnetic forces between the particles of the wall

magnetic forces between the particles of the balloon and the particles of the wall

electrostatic forces between the particles of the wall

Why does a plastic rod have a negative charge after being rubbed with a piece of fur?

The rod gains electrons from the fur.

The fur gives up protons to the rod.

The rod gives up electrons to the air.

The fur gains protons from the rod.

Mr. Jenkins constructed a circuit consisting of a variable source, wires, and a resistor. In order to triple the amount of current, how should he change the voltage of the source?

make the voltage three times larger

make the voltage one-third as great

make the voltage nine times larger

make the voltage one-ninth as great

Which of the following statements describes the electric force between two oppositely charged particles as they approach each other?

The attractive electric force increases.

The electric force becomes repulsive.

The magnitude of the electric force decreases.

The repulsive electric force becomes attractive.

The measurements in the table above are from four circuits that each have the same components except for the battery. Which of the following statements describes how voltage, current, and resistance are related by Ohm’s law in these circuits?

As voltage increases, current increases and resistance stays the same.

As voltage increases, current decreases and resistance decreases.

As voltage increases, current decreases and resistance stays the same.

As voltage increases, current stays the same and resistance decreases.

Two particles with the same positive charge are 100 cm apart. What happens to the electric force between the two particles when the charge on each particle doubles?

The repulsive electric force becomes four times as strong.

The electric force becomes attractive.

The magnitude of the electric force decreases.

The attractive electric force becomes two times as strong.

Which of the following is a function of a resistor in a circuit?

to increase the amount of voltage

What is the primary difference between insulators and conductors?

Electrons are free to move in conductors but not in insulators.

Electrons are present in insulators but not in conductors.

Electrons are present in conductors but not in insulators.

Electrons are free to move in insulators but not in conductors.

A student builds a simple circuit and places a magnet under one of the circuit’s wires. When the switch is closed, charges flow in the circuit and the wire moves, as shown in the diagram below. Which question is the student most likely trying to answer?

Does the current in the wire create a magnetic field?

Does a positive charge build up in the wire?

Does a negative charge build up in the wire?

Does the current in the wire cause the wire to heat up?

Which of the following describes how a generator operates?

It rotates a coil of wire through a magnetic field to produce a current.

It creates a large resistance to oppose the flow of electricity.

It uses side-by-side coils of wire to transform a voltage to a safe level.

It transmits a signal to a circuit breaker to protect its components.

A series circuit is constructed with a battery, a light bulb, and a resistor. What happens if the resistor is removed from the circuit?

The current increases and the bulb’s light becomes brighter.

The current increases and the bulb’s light becomes dimmer.

The current decreases and the bulb’s light becomes dimmer.

The current decreases and the bulb’s light becomes brighter.

A circuit has three different resistors and a battery. One of the resistors has a resistance of 10 ohm. A student wants to calculate the current flowing through this resistor. Which of the following would provide the student with enough information to calculate the current in the 10 ohm resistor?

the voltage across this resistor

the power rating of the battery

the values of the other two resistors

The diagram shows a negatively charged particle traveling toward two parallel charged plates. What will most likely happen to the negatively charged particle when it travels between the charged plates?

Its path will bend downward toward the positively charged plate.

It will accelerate as it travels in a straight line.

Its path will bend upward toward the negatively charged plate.

It will maintain its original speed as it travels in a straight line.

Which statement describes what most likely occurs when a magnetic compass is placed next to a simple circuit made from a battery, a light bulb, and a wire?

A magnetic field created by the electric current causes the compass needle to move.

A magnetic field created by the compass causes the light bulb to stop working.

A magnetic field created by the compass increases the current in the electrical circuit.

A magnetic field created by the electric current places negative charges on the compass.

Which of the following is a purpose of a battery in a circuit?

to protect the circuit from too much current

Electricity

Authored by Peter Papaleo

Physics

9th - 12th Grade

NGSS covered

Used 61+ times

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40 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Aluminum sphere A contains a small negative charge and is touched by aluminum sphere B, which has a larger negative charge. Which of the following occurs next?

Protons flow from sphere B to sphere A.

Protons flow from sphere A to sphere B.

Electrons flow from sphere B to sphere A.

Electrons flow from sphere A to sphere B.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following describes an object that must have a net negative charge?

It contains more molecules than atoms.

It contains more electrons than protons.

It is carrying an electric current.

It is made of metal.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the distance separating an electron and a proton is halved, the magnitude of the electrostatic force between these charged particles will be

unchanged

doubled

quartered

quadrupled

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Two similar metal spheres, A and B, have charges of +2.0 x 10^–6 coulomb and +1.0 x 10–6 coulomb, respectively, as shown in the diagram. The magnitude of the electrostatic force on A due to B is 2.4 newtons. What is the magnitude of the electrostatic force on B due to A?

1.2 N

2.4 N

4.8 N

9.6 N

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Metal sphere A has a charge of –2 units and an identical metal sphere, B, has a charge of –4 units. If the spheres are brought into contact with each other and then separated, the charge on sphere B will be

0 units

–2 units

–3 units

+4 units

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Gravitational forces differ from electrostatic forces in that gravitational forces are

attractive, only

repulsive, only

neither attractive nor repulsive

both attractive and repulsive

Tags

NGSS.HS-PS2-4

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Two small metallic spheres, A and B, are separated by a distance of 4.0 X 10^–1 meter, as shown. The charge on each sphere is 1.0 x 10^–6 coulomb. Point P is located near the spheres. What is the magnitude of the electrostatic force between the two charged spheres?

2.2 x 10^–2 N

5.6 x 10^–2 N

2.2 x 10⁴ N

5.6 x 10⁴N

Tags

NGSS.HS-PS2-4

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Electricity

Aluminum sphere A contains a small negative charge and is touched by aluminum sphere B, which has a larger negative charge. Which of the following occurs next?

Which of the following describes an object that must have a net negative charge?

If the distance separating an electron and a proton is halved, the magnitude of the electrostatic force between these charged particles will be

Two similar metal spheres, A and B, have charges of +2.0 x 10^–6 coulomb and +1.0 x 10–6 coulomb, respectively, as shown in the diagram. The magnitude of the electrostatic force on A due to B is 2.4 newtons. What is the magnitude of the electrostatic force on B due to A?

Metal sphere A has a charge of –2 units and an identical metal sphere, B, has a charge of –4 units. If the spheres are brought into contact with each other and then separated, the charge on sphere B will be

Gravitational forces differ from electrostatic forces in that gravitational forces are

Two small metallic spheres, A and B, are separated by a distance of 4.0 X 10^–1 meter, as shown. The charge on each sphere is 1.0 x 10^–6 coulomb. Point P is located near the spheres. What is the magnitude of the electrostatic force between the two charged spheres?

The current through a 10.-ohm resistor is 1.2 amperes. What is the potential difference (voltage) across the resistor?

A 6.0-ohm lamp requires 0.25 ampere of current to operate. In which circuit below would the lamp operate correctly when switch S is closed?

In the circuit diagram below, two 4.0-ohm resistors are connected to a 16-volt battery as shown. The total current in the circuit is

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

Electricity

Aluminum sphere A contains a small negative charge and is touched by aluminum sphere B, which has a larger negative charge. Which of the following occurs next?

Which of the following describes an object that must have a net negative charge?

If the distance separating an electron and a proton is halved, the magnitude of the electrostatic force between these charged particles will be

Two similar metal spheres, A and B, have charges of +2.0 x 10–6 coulomb and +1.0 x 10–6 coulomb, respectively, as shown in the diagram. The magnitude of the electrostatic force on A due to B is 2.4 newtons. What is the magnitude of the electrostatic force on B due to A?

Metal sphere A has a charge of –2 units and an identical metal sphere, B, has a charge of –4 units. If the spheres are brought into contact with each other and then separated, the charge on sphere B will be

Gravitational forces differ from electrostatic forces in that gravitational forces are

Two small metallic spheres, A and B, are separated by a distance of 4.0 X 10–1 meter, as shown. The charge on each sphere is 1.0 x 10–6 coulomb. Point P is located near the spheres. What is the magnitude of the electrostatic force between the two charged spheres?

The current through a 10.-ohm resistor is 1.2 amperes. What is the potential difference (voltage) across the resistor?

A 6.0-ohm lamp requires 0.25 ampere of current to operate. In which circuit below would the lamp operate correctly when switch S is closed?

In the circuit diagram below, two 4.0-ohm resistors are connected to a 16-volt battery as shown. The total current in the circuit is

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Physics

Two similar metal spheres, A and B, have charges of +2.0 x 10^–6 coulomb and +1.0 x 10–6 coulomb, respectively, as shown in the diagram. The magnitude of the electrostatic force on A due to B is 2.4 newtons. What is the magnitude of the electrostatic force on B due to A?

Two small metallic spheres, A and B, are separated by a distance of 4.0 X 10^–1 meter, as shown. The charge on each sphere is 1.0 x 10^–6 coulomb. Point P is located near the spheres. What is the magnitude of the electrostatic force between the two charged spheres?