Question 1

What is gravity?

Accepted Answer

A force that pulls objects toward each other

Answer

An invisible shield around planets

Answer

The energy created by rotating planets

Answer

A force that pushes objects away from each other

Question 2

Which two factors affect the strength of gravity between two objects?

Accepted Answer

Mass and distance

Answer

Mass and temperature

Answer

Speed and shape

Answer

Volume and density

Question 3

What happens to gravitational force as distance increases?

Accepted Answer

It weakens

Answer

It becomes stronger

Answer

It reverses direction

Answer

It stays the same

Question 4

Why do planets stay in orbit around the Sun?

Accepted Answer

Gravity pulls them while inertia keeps them moving

Answer

The Sun emits strong magnetic waves

Answer

Solar wind pushes them forward

Answer

The planets’ mass pushes them into a circle

Question 5

What is inertia?

Accepted Answer

The tendency of an object to resist a change in motion

Answer

Energy created by mass

Answer

The speed of an object in orbit

Answer

A type of gravity only in space

Question 6

Newton’s First Law says that an object in motion will:

Accepted Answer

Stay in motion unless acted on by a force

Answer

Eventually stop due to space gravity

Answer

Slow down automatically in space

Answer

Lose mass in orbit

Question 7

If Earth’s gravity suddenly disappeared, what would happen to the Moon?

Accepted Answer

It would fly off in a straight line

Answer

It would rotate faster

Answer

It would stay in orbit

Answer

It would fall to Earth

Question 8

What is net force?

Accepted Answer

The overall force acting on an object

Answer

The speed of an object

Answer

The pull of gravity from the Sun

Answer

The total mass in motion

Question 9

What shape are planetary orbits?

Accepted Answer

Ellipses

Answer

Triangles

Answer

Spirals

Answer

Perfect circles

Question 10

Why do planets move faster when closer to the Sun?

Accepted Answer

The Sun’s gravity is stronger at shorter distances

Answer

Their mass increases

Answer

They heat up

Answer

There’s less space resistance

Question 11

Which unit is commonly used to measure distances within the solar system?

Accepted Answer

Astronomical Units (AU)

Answer

Kilometers

Answer

Light years

Answer

Miles

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