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CP Physics - Ch 23/24

Total questions: 23

Worksheet time: 35mins

Name
Class
Date
1.

The flow of electric charge that transports energy from one place to another is called

a)

electricity

b)

electric current

c)

power

d)

electric force

2.

Electric power is _______ proportional to electric potential (voltage).

a)

inversely

b)

directly

c)

not

3.

The source of all magnetism is

a)

magnets.

b)

moving magnets.

c)

moving electric charges.

d)

Earth's north pole.

4.

A magnet whose field is produced by an electric current is called a(n)

a)

electromagnet.

b)

iron nail.

c)

compass.

d)

north pole.

5.

Adding a light bulb to a series circuit will _________the current.

a)

increase

b)

decrease

c)

not change

6.

The region of influence around a magnetic pole is called a(n)

a)

magnetic field.

b)

magnetic domain.

c)

magnet.

d)

electric field.

7.

Thicker wires have _________ resistance.

a)

more

b)

less

c)

equal

d)

More info is needed

8.

Thicker wires have _________ resistance.

a)

more

b)

less

c)

equal

d)

More info is needed

9.

Magnetic force is ______________ to magnetic field.

a)

More information is needed.

b)

equal to

c)

parallel

d)

perpendicular

10.

An object will be magnetic if its ________________ are all aligned in the same direction.

a)

magnetic fields

b)

magnetic domains

c)

electrons

d)

charges

11.

An electric circuit in which electrical devices are connected in such a way that the same voltage acts across each one is called a(n)

a)

series circuit

b)

parallel circuit

c)

voltage circuit

d)

equal circuit

12.

An electric circuit in which electrical devices are connected in such a way that the same current flows through each one is called a(n)

a)

series circuit

b)

parallel circuit

c)

current circuit

d)

equal circuit

13.

When you split a magnet in half, you get two smaller magnets.

a)

TRUE

b)

FALSE

14.

Magnetic force is ____________ to the direction of current flow.

a)

parallel

b)

perpendicular

c)

equal to

d)

More information is needed.

15.

Magnetic force _________ when distance increases.

a)

doesn't change

b)

increases

c)

decreases

d)

doubles

16.

High-speed particles that travel throughout the universe are called

a)

cosmic rays.

b)

light waves.

c)

infrared light.

d)

UV rays.

17.

Clustered regions of aligned magnetic atoms are called

a)

magnetic domains.

b)

magnetic fields.

c)

magnetic poles.

d)

electric charges.

18.

You are experimenting with an electrical circuit. When one light bulb burns out, the rest stay lit. What type of circuit is it?

a)

parallel

b)

series

c)

magical

d)

special

19.

The potential difference between two points is 25 V and the current is 5 A. What is the resistance between the two points?

a)

20 ohms

b)

125 ohms

c)

5 ohms

d)

1 ohm

20.

Which of the following is NOT a magnetic material?

a)

iron

b)

magnetite

c)

aluminum

d)

nickel

21.

When a current-carrying conductor is placed in a magnetic field, it will

a)

experience a magnetic force.

b)

stop carrying current.

c)

not be effected.

22.

Current carries energy through conductors at very high speeds, but the electrons travel at a slower speed called

a)

drift velocity.

b)

electron speed.

c)

speed of light.

d)

slow speed.

23.

Conventional current flows from ______________ to _____________.

a)

positive to negative.

b)

negative to positive.

c)

negative to negative

d)

positive to positive