Unit 1: Gravity and Motion Review

The ____________ of an object refers to the gravitational force exerted on an object by a planet or moon.

• mass

• independent variable

• weight

• force

A roller coaster is an example of a(n) _____________ because it is a set of connected, interacting parts that form a more complex whole.

• experiment

• pattern

• system

• hypothesis

Science involves

• experimenting

• observing

• questioning

• all of the above

_______________ is the motion form of energy.

• potential energy

• kinetic energy

• gravitational energy

• chemical energy

________________ is the force that holds us all on Earth's surface because it is a force of attraction between all matter.

• gravity

• acceleration

• energy

• speed

Why do scientists follow a scientific process? (Based on the text)?

• To stay safe

• to guide them in answering questions and developing a replicable experiment

• to solve problems

• so they don't mess anything up

Why is gravity an attractive force?

• it pushes objects away from each other

• it pulls objects in

• it's stored

• it moves things

How does potential energy relate to kinetic energy?

• They constantly transform from one to the other.

• Potential energy is lost once it transforms to kinetic energy.

• Kinetic energy is lost once it transforms to potential energy.

• They both are energy of motion.

What energy is transferred when two objects collide?

• gravitational energy

• potential energy

• mechanical energy

• kinetic energy

Why is all matter on Earth's surface affected by Earth's gravity and not the gravity of other matter?

• Other matter does not have gravity, just planets and moons.

• Other matter is not close enough.

• Earth is much more massive than any other matter on Earth.

• Other matter does not have enough energy to transfer.