All about Gravity

What is weight?

• It is the measure of gravity on an object
• It is the measure of mass on an object
• It is the measure of matter on an object

What is gravity?

• An invisible force that pulls an object up
• An invisible force that pulls an object down
• An invisible force that pushes an object up
• An invisible force that pushes an object down

What would you change to increase gravitational attraction?

• matter
• shape
• mass
• volume

Astronauts on the Moon can jump higher than if they were on Earth. This is because...

• Newton's laws of motion do not apply to the Moon.
• the Moon is smaller than the Earth so it exhibits a smaller gravitational pull
• there is no friction on the Moon.

What happens to the force of gravity between two objects if the distance between them increases?

• the pull of gravity increases.
• the pull of gravity decreases.
• the pull of gravity stays the same.

If Earth’s mass is doubled without changing its size, then your weight would

• increase because gravitational forces increase
• decrease because gravitational forces increase

The solar system includes the planets, the moons of those planets, and the sun. Which of the following is true about the solar system?

• no gravity exists between earth and the other planets on their moons
• other planets exert gravity on earth but do not exert gravity on earth’s moon
• gravity exists among all parts of the solar system and holds it together

How would the force of gravity be affected if Earth and the sun were further apart?

• the force of gravity would decrease
• the force of gravity would increase
• the force of gravity would stay the same

In addition to distance, what factor determines the force of gravity between two objects?

• the diameter of each object
• the mass of each object
• the density of each object

What happens to the force of gravity between two objects if the distance between the increases?

• the gravitational attraction increases.
• the gravitational attraction decreases.
• the gravitational attraction stays constant.