AnswersCSD Summer 2026 PhysicalEarth ScienceLab: Magnetic and Electric Fields

Lab: Magnetic and Electric Fields — Unit test Answers

0 verified answers
1
Free Preview

Which change will cause the gravitational force between a baseball and a soccer ball to increase?

A
removing the outer layer of the baseball
B
moving the balls farther apart
C
wrapping the soccer ball in layers of duct tape
D
using a baseball with a thinner leather
2
Free Preview

Which refers to the force that one massive object exerts to attract another object?

A
velocity
B
gravity
C
acceleration
D
newton
3

Which will a positively charged object attract?

A
an object that has a negative charge
B
an object that has a smaller positive charge
C
an object that has no charge
D
an object that has a larger positive charge
4

Which statement correctly describes Earth’s magnetic field?

A
A compass can lead a hiker to the geographic North Pole.
B
The magnetic pole near the South Pole is a north pole.
C
Compasses point toward a magnetic pole that is a north pole.
D
Field lines circle Earth from east to west.
5

What happens to an iron bar when it is placed within the coils of a solenoid?

A
It induces a current.
B
It stops the current.
C
It becomes a magnet.
D
It loses its magnetism.
6

Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?

A
velocity
B
mass
C
momentum
D
direction
7

Anya knows the velocity of an object. What else does she need to know in order to find the object’s momentum?

A
its mass
B
its height
C
its density
D
its speed
8

Tisa makes a diagram to organize her notes about charging objects.

Question illustration
A
Electrons move between objects.
B
The objects do not touch.
C
The objects develop opposite charges.
D
The objects have the same charge.
9

Frances drew a diagram to show electromagnetic induction.

Question illustration
A
Current
B
Magnetic field
C
Solenoid
D
Force on wire
10

A bar magnet is cut in half, as shown. Which shows the pieces after the magnet is cut?

Question illustration
A
2 pieces of broken magnet with a jagged edge on the inside side of each piece. On the left a piece labeled N S from left and on the right a piece labeled N S from left.
Option A
B
2 pieces of broken magnet with a jagged edge on the inside side of each piece. On the left a piece labeled N S from left and on the right a piece labeled S N from left.
Option B
C
2 pieces of broken magnet with a jagged edge on the inside side of each piece. On the left a piece labeled N and on the right a piece labeled S.
Option C
D
2 pieces of broken magnet with a jagged edge on the inside side of each piece. On the left a piece labeled S and on the right a piece labeled N.
Option D
11

The image shows the electric field lines around two charged particles.

Question illustration
A
1
B
2
C
3
D
4
12

An object in projectile motion will follow which path?

A
curved up from the ground
B
curved down toward the ground
C
straight down toward the ground
D
straight up from the ground
13

How are the magnetic field lines near the south pole of a magnet affected when a second south pole is brought near it?

A
The field lines combine with the lines around the second south pole.
B
The field lines overlap with the lines from the second south pole.
C
The field lines bend toward the second south pole.
D
The field lines bend away from the second south pole.
14

How does increasing the distance between charged objects affect the electric force between them?

A
The electric force increases because the distance has an indirect relationship to the force.
B
The electric force increases because the distance has a direct relationship to the force.
C
The electric force decreases because the distance has an indirect relationship to the force.
D
The electric force decreases because the distance has a direct relationship to the force.
15

The diagram shows a coiled wire that carries an electrical current.

Question illustration
A
the magnetic field
B
thermal energy
C
light energy
D
the electric field
16

Which statement correctly describes gravity?

A
an attractive force that acts between all objects through contact
B
an attractive force that acts between all objects without contact
C
a repulsive force that acts between all objects through contact
D
a repulsive force that acts between all objects without contact
17

An object that is made of which material is likely to be attracted to a magnet?

A
nitrogen
B
nickel
C
paper
D
plastic
18

Georgia moves an unattached piece of wire back and forth over a magnet. Which best explains what will happen?

A
A current will be induced because the wire moves through a magnetic field.
B
A current will not be induced because the wire moves through a magnetic field.
C
A current will be induced because the wire is not part of a closed circuit.
D
A current will not be induced because the wire is not part of a closed circuit.
19

A bicycle has a momentum of 36 kg • m/s and a velocity of 4 m/s. What is the mass of the bicycle?

A
9 kg
B
32 kg
C
40 kg
D
144 kg
20

The chart lists the masses and velocities of four objects.

Question illustration
A
W
B
X
C
Y
D
Z

Did you find these answers helpful?

More from this Course

Quiz
25 verified answers

Unit Test

Assignment
25 verified answers

Unit Test

Assignment
17 verified answers

Lab: Magnetic and Electric Fields