Quiz about Forces, Electricity and Magnetism

Question 1

Which of the following is a device in which magnetism is produced by an electric current running through a wire wrapped around an iron or steel core?

Accepted Answer

electromagnet

Answer

battery

Answer

generator

Answer

motor

Question 2

Which of the following in true about the relationship between electricity and magnetism?

Accepted Answer

electricity can be used to create a magnet

Answer

magnetism and electricity cannot be converted into one another

Answer

magnetism is based on how gravity attracts electrical energy

Answer

electrical energy and magnetism cancel each other out

Question 3

How can a magnet be used to produce an electric current?

Accepted Answer

spin the magnet around inside a coil of wire

Answer

hold the magnet next to a wire

Answer

connect a wire to each end of a magnet

Answer

wrap wire around the magnet

Question 4

If you use a dehumidifier ( takes moisture out of the air ) or an air conditioner, then it will

Accepted Answer

increase the potential of electrostatic shock

Answer

decease the potential of electrostatic shock

Answer

have no effect on the amount of electrostatic shock

Question 5

Electrons built up in your hand, jump to a metal doorknob before you actually touch the door. Which term describes how the doorknob becomes charged, causing the spark to jump?

Accepted Answer

induction

Answer

friction

Answer

conduction

Question 6

An object with an unbalanced force must be at rest.

Accepted Answer

false

Answer

true

Question 7

An object with a balanced force must be at rest.

Accepted Answer

false

Answer

true

Question 8

Two similarly shaped objects when dropped from the same height will hit the ground at different times depending on their mass.

Accepted Answer

false

Answer

true

Question 9

A change in position of an object is its

Accepted Answer

motion

Answer

acceleration

Answer

speed

Answer

momentum

Question 10

The harder I pull, the faster my wagon moves.

Accepted Answer

Newton's Law 2 F=MA

Answer

Newton's Law 1 Inertia

Answer

Newton's Law 3 Action Reaction

Question 11

A swimmer pushes water back with his arms, and his body moves forward.

Accepted Answer

Newton's Law 3 Action Reaction

Answer

Newton's Law 1 Inertia

Answer

Newton's Law 2 F=MA

Question 12

When you are riding in the car and the driver slams on the brakes, the car suddenly stops, but your body continues to move forward.

Accepted Answer

Newton's Law 1 Inertia

Answer

Newton's Law 2 F=MA

Answer

Newton's Law 3 Action Reaction

Question 13

A force

Accepted Answer

all of the answers

Answer

is expressed in Newtons

Answer

can cause an object to speed up, slow down, or change directions

Answer

is a push or a pull

Question 14

Which is true about the Law of Conservation of Energy.

Accepted Answer

energy can be transferred from one object to another

Answer

energy can be created from nothing

Answer

energy can be destroyed

Answer

none are correct

Question 15

When riding a rollercoaster, you go up and down many hills. When do you have the least amount of kinetic energy?

Accepted Answer

at the top of each hill

Answer

as you go down each hill

Answer

at the bottom of each hill

Answer

as you go up each hill

Question 16

A monkey increases it gravitational potential energy by climbing to the top of a tree. What happens to the potential energy if he climbs back down halfway.

Accepted Answer

it would decrease by half

Answer

it would remain the same

Answer

it would double

Answer

it would decrease by 3/4

Question 17

A waterfall is an example of

Accepted Answer

potential energy being converted into kinetic energy

Answer

energy being destroyed

Answer

energy being created

Answer

kinetic energy being converted into potential energy

Question 18

Two dogs are tugging on a bone. One dog is pulling with a force of 4 Newtons to the right. The other dog is pulling with a force of 7 Newtons to the left. What will happen to the bone?

Accepted Answer

The bone will be moved to the left

Answer

The bone will be moved to the right

Answer

The bone will remain where it is

Question 19

If you climb to the top of a slide, you are gaining

Accepted Answer

gravitational potential energy

Answer

gravitational kinetic energy

Answer

chemical kinetic energy

Answer

chemical potential energy

Question 20

Lightning could be compared to which of the following

Accepted Answer

a spark

Answer

running water

Answer

a wave

Answer

thunder

Question 21

Which of the following is an example of potential energy

Accepted Answer

a compressed spring

Answer

a rolling ball

Answer

a turning windmill

Answer

a moving train

Question 22

What will happen if you increase the electric current that is flowing through an electromagnet?

Accepted Answer

the magnet will become stronger

Answer

the magnet will become weaker

Answer

the poles of the magnet will reverse

Answer

the magnet will become permanent

Question 23

A boy is riding his bike along a path by the beach. He travels 9 miles in 2 hours. What was the boy's speed?

Accepted Answer

4.5 miles/ hour

Answer

2.2 miles/ hour

Answer

2.2 meters / mins

Answer

4.5 meters/ mins

Question 24

Which of the interactions between statically charged objects is described when hair sticks to a balloon.

Accepted Answer

negative charge and positive charge

Answer

postive charge and positive charge

Answer

negative charge and negative charge

Question 25

Which of the interactions between statically charged objects is described when 2 pieces of satin that have each lost half of their electrons move away from each other.

Accepted Answer

positive charge and positive charge

Answer

negative charge and negative charge

Answer

negative charge and positive charge

Question 26

A box has a force of 63 N pushing to the right and a force of 91N pushing left. Are the forces balanced or unbalanced?

Accepted Answer

unbalanced

Answer

balanced

Question 27

An archer pulls back his arrow against his bow string.This is an example of what kind of energy.

Accepted Answer

potential energy

Answer

both potential and kinetic energy

Answer

kinetic energy

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