Non-contact Forces: Gravitational Force

1.

Multiple Choice

30 sec

1 pt

Based on the images below, what is the mass of the flowerpot? (Masses are labeled in kilograms.)

less than 4 kg

between 4 kg and 5 kg

exactly 4.5 kg

more than 5 kg

2.

Multiple Choice

30 sec

1 pt

The force of gravity on the surface of Mercury is much less than on Earth. A rock has a weight of 100 newtons on Earth. What do you know about the weight of the rock on Mercury?

The rock will weigh exactly 100 newtons.

The rock will weigh more than 100 newtons.

The rock will weigh less than 100 newtons.

There is not enough information to know if the rock weighs the same, more, or less on Mercury.

3.

Multiple Choice

30 sec

1 pt

A chair has a mass of 10 kilograms on Earth. What is the mass of the chair on Mercury?

10 kilograms

more than 10 kilograms

less than 10 kilograms

not enough information

4.

Multiple Choice

5 mins

1 pt

Which is needed to determine the amount of gravitational force between two objects?

distance and mass

weight and time

area and weight

5.

Multiple Choice

5 mins

1 pt

Which of the following data would support the claim that the gravitational force between objects depends on mass?

The gravitational force gets weaker as objects get farther apart.

The graviational force only pulls on objects.

The gravitational force is greater on more massive planets.

The graviational force is only attractive.

6.

Multiple Choice

5 mins

1 pt

When a satellite is sent into orbit, what factor(s) keep it from crashing down into the planetary body?

The planet's magnetic force repels the satellite from the planet.

The applied force of thrust ONLY, keeping the satellite moving forward.

The combination of an object's inertia (forward motion) and gravity.

Satellites do not orbit a planet they only pass near planets on their journey through space

7.

Multiple Choice

5 mins

1 pt

Each non-contact force has an area of influence surrounding it. What is this area called?

gravitational attraction

influence center

field

attraction

8.

Multiple Choice

5 mins

1 pt

If each object has the same mass, which pair has the strongest gravitational attraction?

The first, because it appears to weigh the most.

The first, because the arrows are thickest.

The second, because it has an even balance of weight and distance.

The first, because the objects are closest together.

9.

Multiple Choice

5 mins

1 pt

What is gravitational force?

It makes objects at rest start moving.

It makes objects that are moving stop.

The force of attraction between two objects.

It pulls you into space.

10.

Multiple Choice

5 mins

1 pt

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

stronger

weaker

11.

Multiple Choice

30 sec

1 pt

A bowling ball and a bag of potato chips are dropped at the same time from a tall tower on Earth. What happens?

The bowling ball hits the ground first.

The bag of potato chips hits the ground first.

Both objects hit the ground at the same time.

The objects don't move at all. They just stay where they were released.

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