Question

Question 1 (3 points)

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What is the difference between mass and weight?

Question 1 options:

mass always stays the same and weight changes due to gravity


mass always stays the same and weight always stays the same


mass changes due to gravity and weight stays the same

Question 2 (3 points)

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What would happen to your weight if the Earth's mass was doubled?

Question 2 options:

increase because gravity increases


not change because you are still on Earth


increase because gravity decreases


decrease because gravity increases

Question 3 (3 points)

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What will also be greater if an object has greater surface area?

Question 3 options:

mass


air resistance


gravitational force


acceleration

Question 4 (3 points)

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What is the gravitational acceleration on Earth?

Question 4 options:

1.62 m/s2


3.71 m/s2


9.8 m/s2


19.6 m/s2

Question 5 (3 points)

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What determines the amount of gravity between two objects?

Question 5 options:

how far they are from each other and each object's mass


how far they are from each other and each object's color


how far they are from each other and each object's volume


how far they are from each other and each object's weight

Question 6 (3 points)

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Which of the following only occurs when there is no air resistance?

Question 6 options:

Free fall


Gravity


Attraction


Momentum

Question 7 (3 points)

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What does Newton's Law of Universal Gravitation explain?

Question 7 options:

Throughout the universe the amount of gravitational force depends on the masses of the objects and the distance between them.


That all matter has mass; therefore all matter has gravity. Furthermore, all matter has weight.


Weight and mass are the same as long as you are on Earth, so there is no need to use scales if you have a balance.


All celestial bodies, discovered or undiscovered, in the universe have gravity equal to Earth.

Question 8 (3 points)

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When does an object reach terminal velocity?

Question 8 options:

when the speed of the object is less than the force of air resistance


when the speed of the object is equal to the force of air resistance


when the speed of the object is more than the force of air resistance

Question 9 (3 points)

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How does the Sun's gravity compare to the Earth's gravity?

Question 9 options:

Their gravitational pull is the same.


The Sun's gravity is stronger.


Scientists aren't able to measure the sun's gravity.


The Earth's gravity is stronger.

Question 10 (3 points)

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What is the reason that objects weigh less on the Moon than on Earth?

Question 10 options:

The Earth has less gravity than the Moon.


The Earth is farther away from the Sun than the Moon.


The Moon has less mass than the Earth.


The Moon is farther away from the Sun than the Earth.

Question 11 (3 points)

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You drop a bowling ball and a basketball from the roof of a two story building. Which will reach the ground first? (Ignoring Air Resistance)

Question 11 options:

the basketball


the bowling ball


They both reach the ground at the same time.

Question 12 (3 points)

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An object on Earth weighs 600 N and on Mars 100 N. If its mass on Earth is approximately 60 kg what is the mass of the object on Mars?

Question 12 options:

Can not be determined.


Approximately 60 kg


Less than 60 kg


Greater than 60 kg

Question 13 (3 points)

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Based on the information in the chart above, which planet would have the highest value of gravity?

Question 13 options:

Mars


Mercury


Earth


Jupiter

Question 14 (3 points)

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A skydiver dives from an airplane. The amount of air resistance she is met with is measured at each second following her jump.

Time after jump

Weight

Air Resistance

1 seconds

500 N

200 N

2 seconds

500 N

300 N

3 seconds

500 N

400 N

4 seconds

500 N

500 N

Which statement best identifies her speed at each second?

Question 14 options:

The data suggests she has the fastest speed at second 4


The data suggests she has the fastest speed at second 1


The data suggests she will be going faster at second 5


The data suggests she has the slowest speed at second 1

Answer 1

Here are the answers to the questions:

**Question 1:** What is the difference between mass and weight?
**Answer:** mass always stays the same and weight changes due to gravity

**Question 2:** What would happen to your weight if the Earth's mass was doubled?
**Answer:** increase because gravity increases

**Question 3:** What will also be greater if an object has greater surface area?
**Answer:** air resistance

**Question 4:** What is the gravitational acceleration on Earth?
**Answer:** 9.8 m/s2

**Question 5:** What determines the amount of gravity between two objects?
**Answer:** how far they are from each other and each object's mass

**Question 6:** Which of the following only occurs when there is no air resistance?
**Answer:** Free fall

**Question 7:** What does Newton's Law of Universal Gravitation explain?
**Answer:** Throughout the universe the amount of gravitational force depends on the masses of the objects and the distance between them.

**Question 8:** When does an object reach terminal velocity?
**Answer:** when the speed of the object is equal to the force of air resistance

**Question 9:** How does the Sun's gravity compare to the Earth's gravity?
**Answer:** The Sun's gravity is stronger.

**Question 10:** What is the reason that objects weigh less on the Moon than on Earth?
**Answer:** The Moon has less mass than the Earth.

**Question 11:** You drop a bowling ball and a basketball from the roof of a two story building. Which will reach the ground first? (Ignoring Air Resistance)
**Answer:** They both reach the ground at the same time.

**Question 12:** An object on Earth weighs 600 N and on Mars 100 N. If its mass on Earth is approximately 60 kg what is the mass of the object on Mars?
**Answer:** Approximately 60 kg (mass remains constant regardless of location)

**Question 13:** Based on the information in the chart above, which planet would have the highest value of gravity?
**Answer:** Jupiter

**Question 14:** A skydiver dives from an airplane. The amount of air resistance she is met with is measured at each second following her jump.

Which statement best identifies her speed at each second?
**Answer:** The data suggests she will be going faster at second 5 (as the air resistance is equal to her weight at second 4, she will continue to accelerate until that point).

Let me know if you need any further assistance!