Understanding Gravity and Its Effects

What is gravity?

• A pulling force that works across space

• A pushing force that works across space

• A force that only works on Earth

• A force that only affects large objects

What keeps the planets in orbit around the sun?

• The force of gravity

• The speed of the planets

• The distance from the sun

• The size of the planets

What happens to astronauts inside a spacecraft in orbit?

• They experience weightlessness

• They fall towards Earth

• They escape Earth's gravity

• They feel heavier

According to Newton, what does the force of gravity depend on?

• The mass of the objects and the distance between them

• The speed of the objects

• The size of the objects

• The temperature of the objects

Why does the sun have a greater force of gravity than Earth?

• Because it has a greater mass

• Because it is closer to Earth

• Because it is hotter

• Because it is larger in size