AnswersFall 24 GSE Physical Science B ICElectric Charge

Electric Charge — Cumulative exam Answers

3 verified answers
1
Free Preview

A car has a mass of 1,200 kg. What is its acceleration when the engine exerts a force of 600 N? (Formula: F=ma)

A
0.5 m/s2
B
2 m/s2
C
600 m/s2
D
1,800 m/s2
2
Free Preview

Nolan set up the equipment shown in order to induce a current in a wire.

Question illustration
A
The wire needs to be coiled less tightly.
B
The wire needs to be straight, not coiled.
C
The magnet needs to be moved through the coils of wire.
D
The magnet needs to be held above the coils of wire.
3

Kiley, Jermaine, and Gunther are playing tug-of-war. Kiley and Jermaine are on the same side of the rope, and Gunther is on the other side. Kiley is exerting a force of 20 N, and Jermaine is exerting a force of 25 N.

A
45 N in the opposite direction as Kiley and Jermaine
B
20 N in the opposite direction as Kiley and Jermaine
C
20 N in the same direction as Kiley and Jermaine
D
45 N in the same direction as Kiley and Jermaine
4

In an area of the deep ocean, hot magma emerges from a crack in Earth’s crust. Which statement describes what will happen to the seawater above the crack as a result of convection?

A
Water molecules will break apart and flow in a circular pattern.
B
Water molecules will bond together and rise upward.
C
The water will become more dense and sink downward.
D
The water will become less dense and rise upward.
5

Carla draws two circuit diagrams that connect the same components in different ways, as shown.

Question illustration
A
The total resistance in Circuit A is greater than that in Circuit B.
B
When a bulb in Circuit A goes out, the other bulbs keep shining.
C
The bulbs in Circuit A shine brighter than those in Circuit B.
D
When a bulb in Circuit B goes out, the other bulbs go out.
6

Lisa made the electromagnet shown.

Question illustration
A
She can use a nail with weaker magnetic properties.
B
She can change the direction of the nail.
C
She can increase the number of wire loops.
D
She can reduce the current in the wire.
7

Jan is holding an ice cube. What causes the ice to melt?

A
Thermal energy from the ice is transferred to the air.
B
Thermal energy from Jan’s hand is transferred to the ice.
C
The air absorbs thermal energy from Jan’s hand.
D
Jan’s hand absorbs thermal energy from the ice.
8

What is the potential energy of a 25 kg bicycle resting at the top of a hill 3 m high? (Formula: PE = mgh)

A
75 J
B
735 J
C
245 J
D
37.8 J
9

A flashlight uses the chemical energy stored in a battery. This chemical energy is eventually converted into which two forms of energy?

A
mechanical and nuclear
B
radiant and thermal
C
thermal and mechanical
D
nuclear and electrical
10

Luz, who is skydiving, is traveling at terminal velocity with her body parallel to the ground. She then changes her body position to feet first toward the ground. What happens to her motion?

A
She will continue to fall at the same terminal velocity because gravity has not changed.
B
She will slow down because the air resistance will increase and be greater than gravity.
C
She will speed up because air resistance will decrease and be less than gravity.
D
She will begin to fall in free fall because she will have no air resistance acting on her.
11

Pravat exerts a force of 30 N to lift a bag of groceries 0.5 m. How much work did Pravat do on the bag?Note : Work = Force x Distance

A
0 J
B
15 J
C
30 J
D
60 J
12

Which type of electromagnetic waves make up the colors of a rainbow seen after a storm?

A
visible light
B
infrared light
C
X-rays
D
ultraviolet light
13

A circuit contains two light bulbs connected in parallel. What would happen to the brightness of each light bulb if two more light bulbs were added in parallel to the first ones?

A
The brightness of each bulb would decrease because the total resistance of the circuit would decrease.
B
The brightness of each bulb would increase because the total resistance of the circuit would increase.
C
The brightness of each bulb would remain the same even though the total resistance of the circuit would decrease.
D
The brightness of each bulb would remain the same even though the total resistance of the circuit would increase.
14

Which is the best example of the law of conservation of energy?

A
A basketball stops bouncing because its energy disappears.
B
A rolling skateboard slows down because some of its kinetic energy changes to heat.
C
A falling book hits the ground and all of its energy is destroyed.
D
A toy car gains speed as it moves down a ramp because the ramp creates energy.
15

Plants appear green because they do not absorb the green wavelengths of light. What happens to those green light waves when they hit a plant?

A
They are diffracted.
B
They are absorbed.
C
They are reflected.
D
They are refracted.
16

Gymnasts often practice on foam floors, which increase the collision time when a gymnast falls. What effect does this have on collisions?

A
The change in momentum needed to stop the gymnast is increased.
B
The change in momentum needed to stop the gymnast is decreased.
C
The force exerted by the floor on the gymnast decreases.
D
The force exerted by the floor on the gymnast increases.
17

A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance.

Question illustration
A
a pulley and an inclined plane
B
a wheel and axle and a lever
C
a pulley and a wheel and axle
D
a lever and a wedge
18

Question text not available

Question illustration
A
The forces are balanced.
B
The box will move to the right.
C
The box will move to the left.
D
The forces are unbalanced.
19

Which types of electromagnetic waves have frequencies that are higher than those of ultraviolet light but lower than those of gamma rays?

A
microwaves
B
X-rays
C
infrared light
D
radio waves
20

Theresa comes up with four examples of waves: sound wave, ocean wave, light wave, and hand wave. Which of Theresa's examples is not an actual scientific wave?

A
Sound wave
B
Ocean wave
C
Light wave
D
Hand wave

Did you find these answers helpful?

More from this Course

Assignment
23 verified answers

Lab: Magnetic and Electric Fields

Quiz
37 verified answers

Credit, Interest, and Debt

Assignment
16 verified answers

Electric Circuits