Electric Force

What form of energy is associated with the movement of charges, usually electrons?

• Gravitational

• Electrical

• Magnetic

• Mechanical

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-5

Many electrical wires are wrapped with a plastic coating because plastic is______________.

• a good insulator

• a good conductor

• less expensive than steel

• good at holding its shape

Which atomic particle carries a negative charge?

• proton

• neutron

• electron

A comb is rubbed with a piece of wool fabric and placed next to some scraps of paper. The paper moves toward the comb. What causes the paper to move?

• Magic!

• Magnetic force

• Static electricity

• Too much hair product on the comb.

Tags

NGSS.MS-PS2-3

The flow of electrons through a wire is called__________________.

• resistance

• static

• magnetism

• current

In which direction do electrons flow in a circuit?

• from negative to positive

• from positive to positive

• from positive to negative

• from negative to negative

If two charges repel each other, the two charges are ______________.

• negative and negative

• positive and negative

• positive and neutral

Tags

NGSS.MS-PS2-1

What voltage is needed to cause a 5A current to flow through a 2Ω resistor?

• 2.5 V

• 10 V

• 7 V

• 0.4 V

If the current in an electrical circuit is constant, what will happen to the voltage if the resistance is increased?

• the voltage will decrease

• the voltage will increase

• the voltage will stay the same

• the voltage will become zero

If there are 40 Volts and 5 Amps running through a series circuit, what is the resistance of the circuit?

• 1 Ohm

• 2 Ohms

• 4 Ohms

• • 8 Ohms