Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Physics Semester 1 Final Questions

Total questions: 68

Worksheet time: 49mins

Name
Class
Date
1.

Sophia made an electromagnet but it was very weak. How can she make it stronger?

a)

take away the battery

b)

wrap the wire loosely

c)

use less copper wire

d)

coiled more copper wire

2.

What component becomes a temporary magnet when electricity is flowing through the circuit?

a)

iron nail

b)

copper wire

c)

battery

d)

switch

3.

What component provides the pathway to carry electricity from component to component?

a)

battery

b)

wire

c)

switch

d)

iron nail

4.

Which component provides the energy or the power source to run the electromagnet?

a)

Iron nail

b)

wire

c)

Switch

d)

Battery

5.

Princess made an electromagnet with one battery and wrapped a copper wire 30 times while Megan made and electromagnet with one battery and wrapped a copper wire 50 times. Which electromagnet is stronger?

a)

Megan

b)

Princess

6.

What is an electromagnet?

a)

a permanent magnet with a north and south pole

b)

a temporary magnet made from current carrying wire around a magnetic metal core

7.

This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

a)

Remove all the coils and the nail.

b)

Use a smaller battery.

c)

Reverse the poles of the magnet.

d)

Add more coils of wire to the nail.

8.

Which of the following is NOT part of an electromagnet?

a)

Toothpick

b)

battery

c)

Iron nail

d)

wire

9.

How are electromagnets different from magnets?

a)

magnets have a North and South pole

b)

you can turn an electromagnet on/off

c)

magnets are more powerful

10.

Surrounding every magnet is a __________ __________.

a)

another magnet

b)

electrical current

c)

magnetic field

11.

What would increase the strength of an electromagnet?

a)

Changing the direction of the current

b)

Increased the amount of electricity that flows through the wire.

c)

Inserting a wooden core inside the coil

d)

Decreasing the number of coils of wire

12.

You can make an electromagnet stronger by: having a __________________core inside the wire.

a)

smaller core

b)

larger core

c)

greener core

d)

water core

13.

What is a permanent magnet?

a)

Can be turned off

b)

Can not be turned off

c)

Can turned on and off

14.

Why do you think the compass needle is moving when is near to electromagnet?

a)

Because of the magnetic field generated in the wire.

b)

Because of the electricity generated in the compass.

15.

What are the components of the electromagnet?

a)

copper wire, iron nail, and a wooden stick

b)

copper wire, iron nail

c)

copper wire, iron nail, and a battery

d)

Copper wire, paper and a battery

16.
The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?
a)
Flip the magnet around so the North pole is facing out
b)
Move the magnet back and forth
c)
Take the magnet out
d)
Add more coils around the paper cylinder
17.
How could the experimenter increase the amount of electricity being induced by this experiment?
a)
Increase the number of coils
b)
Decrease the number of coils
c)
Flip the magnet around
d)
Nothing, the amount of electricity cannot be increased
18.
What benefit is gained by the addition of the iron core in an electromagnet?
a)
It makes a strong magnet weaker
b)
It makes a weak magnet stronger
c)
There is no benefit at all
d)
It lets currents interact with each other
19.
A device that converts mechanical energy into electrical energy
a)
A. electric generator
b)
B. electric motor
c)
C. electromagnetic induction
d)
D. mechanical  generator
20.

Click all the factors affecting electromagnetic induction

a)

Strength of magnet

b)

The area of the coil

c)

The speed of movement

d)

Number of turns of coil

e)

The position of poles

21.

How to increase the induced current?

a)

Change carbon brush

b)

Change position of the pole

c)

Use small scale Galvanometer

d)

Increase number of coils

22.
Passing a current through a solenoid will produce
a)
a magnetic field
b)
an electric field
c)
a current field
d)
nothing is produced
23.
13.2 If a magnet is pushed into a coil, voltage is induced across the coil. If the same magnet is pushed
into a coil with twice the number of loops,
a)
a. one-half as much voltage is induced.
b)
b. the same voltage is induced.
c)
c. twice as much voltage is induced.
d)
d. four times as much voltage is induced.
24.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
25.

Can you produce current in a wire with a magnet that is sitting still?

a)

Yes; having a magnet near a wire is enough to excite the electrons

b)

No; the magnetic field has to be changing to excite the electrons

c)

No; magnets cannot create electricity

26.
Electromagnetism is when
a)
magnetism causes electricity
b)
electricity causes magnetism
c)
electricity and magnetism cancel each other out
d)
a strong magnet creates a permanent magnet
27.

Which object(s) have electric fields?

a)

Electric Charges

b)

Magnets

c)

Both Electric Charges & Magnets

d)

Electric fields do not exist

28.

Which object(s) have magnetic fields?

a)

Electric Charges

b)

Magnets

c)

Both Electric Charges & Magnets

d)

Magnetic fields do not exist

29.

A(n) ___ converts electricity into magnetism.

a)

electric transformer

b)

electric generator

c)

electromagnet

d)

electric motor

30.

A(n) ___ converts magnetism into electricity.

a)

electric transformer

b)

electric generator

c)

electromagnet

d)

electric motor

31.

A(n) ___ converts electricity into magnetism, and back to electricity.

a)

electric transformer

b)

electric generator

c)

electromagnet

d)

electric motor

32.

Electric charges must ___ in order to create an observable magnetic field.

a)

exist

b)

be moving

c)

be stationary

d)

disappear

33.

Which of the following will increase the strength of an electromagnet?

a)

Use a Bigger Battery (More Current)

b)

Wrap More Coils

c)

Insert an Iron Core

d)

Use a Bigger Magnet

34.

What must occur for a magnetic field to induce an electric current?

a)

The magnetic field must be really big

b)

The magnetic field must be stable

c)

The magnetic field must be changing

d)

The magnetic field must be from a permanent magnet

35.

The ___ coils a wire has the ___ current is able to be generated.

a)

more; more

b)

less; more

c)

more; less

d)

less; less

36.
As mass decreases, gravitational force does what?
a)
Increases
b)
Decreases 
c)
Remains the same
d)
Changes
37.
What is the measure of force of gravity on an object?
a)
Shape
b)
Height
c)
Weight
d)
Gravity
38.
Which of the following is Newton's Law on Gravitation?
a)
F=Gm1m2/r
b)
F = Gm1m2/r2
c)
F = Gm1m2/2r
d)
F = m1m2/2r
39.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and matter
c)
distance and weight 
d)
weight and mass
40.
Force of gravity is inversely proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
41.
As distance between two objects increases, the pull of gravity 
a)
Increases
b)
Decreases
c)
Stays the same
42.
As distance separating the objects increases the force
a)
increases
b)
decreases
c)
stays the same
43.
If I double the distance between two objects, what happens to their gravitational Force?
a)
4x bigger
b)
4x smaller
c)
2x bigger
d)
2x smaller
44.
What happens to Gravitational force if I double both of the masses but don't change their distance?
a)
doubles
b)
half as big
c)
4x bigger
d)
4x smaller
45.
Gravitational force between two massive spheres 
a)
is always an attraction
b)
depends on how massive they are
c)
depends inversely on the square of the distances between them
d)
all of the above
46.
What happens to Gravitational force if I double both of the masses but don't change their distance?
a)
doubles
b)
half as big
c)
4x bigger
d)
4x smaller
47.
If I triple the distance between two objects, what happens to their gravitational Force?
a)
3x bigger
b)
3x smaller
c)
9x bigger
d)
9x smaller
48.
________ pulls objects toward the center of Earth.
a)
Mass
b)
Weight
c)
Gravity
d)
Resistance
49.
The definition of gravitational field strength is:
a)
The region of space surrounding a body where other bodies will feel an attractive force due to it.
b)
The region of space surrounding a body where other bodies will feel an repulsive force due to it.
c)
The region of space surrounding a charge where other charges will feel an attractive force due to it.
d)
The region of space surrounding a charge where other charges will feel an repulsive force due to it.
50.
In this equation...
a)
G is the gravitational field strength
b)
r is the distance between the 2 masses
c)
F is the repulsive gravitational force
d)
m is the momentum of the mass
51.

As two oppositely charged particles approach each other, what happens to the electrical force between them?

a)

The attractive force increases

b)

The magnitude of the electric force decreases

c)

The repulsive force increases

d)

The magnitude of their charges increases

52.
When distance increases, electrostatic force ____________; we call this relationship ____________ proportional
a)
decreases;directly
b)
decreases;inversely
c)
increases;inversely
d)
increases;directly
53.
The Electric Force is strongest when charges are...
a)
close together
b)
far apart
c)
the electric force is constant everywhere
54.

Which is the value of the constant in Coulomb's equation?

a)

k = 9·10-9

b)

k = 9.8

c)

k = 6.67·10-11

d)

k = 9 ·109

55.
Find the magnitude of the force between two charges of 1.0 C each which are 1.0 meter apart?
a)
9E-9 N
b)
9E9 N
c)
1.1E10 N
d)
1.1E-10 N
56.
What variable is a Coulomb the unit for?
a)
Charge
b)
Force
c)
Distance
d)
Mass
57.
What variable do "Newtons" represent?
a)
Electrostatic Charge
b)
Force
c)
Distance
d)
Mass
58.
What happens to the force between two charged objects when you double the distance between them?
a)
2X
b)
1/2X
c)
4X
d)
1/4X
59.
If each of the charges doubles, what happens to the force?
a)
Quadruples
b)
Doubles
c)
Stays the same
d)
Reduced by half
60.
If the distance doubles, what happens to the force?
a)
Reduced by half
b)
Reduced by 1/4
c)
Stays the same
d)
Quadruples
61.
Electrostatic force F is directly proportional to:
a)
r^2 (distance squared)
b)
q1
c)
q2
d)
both q1 and q2
62.

Recap:

Coulomb’s law states that the force between two charged objects will __________ when the magnitude of the object’s charge increases.

Coulomb’s law also states that the force between two charged objects will __________ when the distance between objects increases.

a)

increase; increase

b)

increase; decrease

c)

decrease; increase

d)

decrease; decrease

63.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
64.
The difference between attract and repel is that to attract is to pull something closer and repel is to push something away.
a)
True
b)
False
65.
How do electrons differ from protons?
a)
They are the same thing
b)
Electrons hold a negative charge and protons hold a positive charge.
c)
Electrons are positively charged and protons are negatively charged.
d)
Protons are neutral 
66.

The image shows two charged particles with a force of 2.4 N. What would you predict the force of interaction would be when the magnitude of charge on q2 doubles?

a)

9.6 N

b)

4.8 N

c)

1.2 N

d)

.6 N

67.

The image shows two charged particles with a force of 2.4 N. What would you predict the force of interaction would be when the distance doubles?

a)

4.8 N

b)

1.2 N

c)

.6 N

d)

.3 N

68.
The Electric Force is strongest when charges are...
a)
close together
b)
far apart
c)
the electric force is constant everywhere