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Energy
Forces
Motion
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100
Potential energy is ______ _________.
What is stored energy.
100

Matter rubbing against matter is known as ______.

What is friction.

100
____________ is the measurement of an object's change of position over time.
What is speed.
100
When a ball is dropped, ________ energy becomes _______ energy.
What is potential, kinetic
100

A rollercoaster going down the hill is an example of what kind of energy?

What is kinetic?

200
Kinetic energy is the energy of ____________.
What is motion
200

Due to _______, objects in motion stay in motion unless a force slows or stops the motion.

What is inertia.

200
Motion consists of two things: __________ and _________.
What is direction and speed.
200
___________ is a force that stops motion.
What is friction.
200

Ice and Glass have ________ amount of friction.

Least

300
Energy exists in two states: ___________ and _________.
What is potential and kinetic.
300

Objects with more _______ have more inertia because objects with more mass take more force to move.

What is mass.

300
You can tell that an object is in motion if an object constantly changes __________.
What is position.
300
You may rub your hands together in the winter to keep them warm because friction creates _________.
What is heat.
300

A ball has been thrown and drops to the ground because of this force.

What is gravity?

400
A moving object ALWAYS has ________ _________.
What is kinetic energy.
400
Gravity, pushing, and pulling are _________.
What is forces.
400

The brakes on a car is an example of ________.

friction

400
When the lid is closed on a jack-in-the-box, the toy has ___________ energy.
What is potential (stored).
400

Gravel and Grass have _________ amount of friction.

What is greater?

500

A skier at the top of a hill has what kind of energy?

What is potential

500
Objects in motion stay in motion unless a ______ slows down or stops the motion.
What is force.
500

Up, down, forward, backward describes a moving object's _________.

What is direction

500

Name 3 forces that can change or stop an object's motion.

What is push, pull, friction, or gravity

500
A car is traveling North at a speed of 60 mph.  This statement is describing the car's _____ and _____.

What is direction and speed