Question 1

What force pulls objects towards the Earth?

Accepted Answer

Gravity

Answer

Buoyancy

Answer

Magnetism

Answer

Friction

Question 2

What happens to the force of gravity as you move farther away from the Earth?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

It changes direction

Question 3

Which scientist is best known for his law of universal gravitation?

Accepted Answer

Isaac Newton

Answer

Galileo Galilei

Answer

Nikola Tesla

Answer

Albert Einstein

Question 4

What would happen to objects in space if there were no gravity?

Accepted Answer

They would float freely

Answer

They would sink

Answer

They would stick together

Answer

They would crash into each other

Question 5

What is the gravitational pull of the Moon on Earth called?

Accepted Answer

Lunar gravity

Answer

Solar gravity

Answer

Tidal force

Answer

Free fall

Question 6

Which two factors determine the strength of gravitational force between two objects?

Accepted Answer

Mass and distance

Answer

Temperature and pressure

Answer

Volume and density

Answer

Speed and mass

Question 7

Why do we feel weightless in space?

Accepted Answer

Because we are in free fall

Answer

There is no gravity in space

Answer

The spacecraft is very heavy

Answer

The air is too thin

Question 8

What is the effect of gravity on the shape of planets?

Accepted Answer

It pulls them into a spherical shape

Answer

It causes them to be cube-shaped

Answer

It has no effect on their shape

Answer

It makes them flat

Question 9

What is the acceleration due to gravity on Earth approximately?

Accepted Answer

9.8 m/s²

Answer

1.6 m/s²

Answer

0 m/s²

Answer

10.5 m/s²

Question 10

What is the term for the path followed by an object as it moves around another object in space due to gravity?

Accepted Answer

Orbit

Answer

Revolution

Answer

Rotation

Answer

Trajectory