Describing Motion
May the Force Be With You
Mass and Acceleration
Collisions and Friction
The Laws of Motion
100

This type of energy is possessed by any object that is currently in motion.

Kinetic Energy

100

A type of force that moves an object away in physical science.

A Push

100

If you apply the same amount of force to a baseball and a heavy bowling ball, this ball will experience the greater change in motion.

The Baseball

100

This invisible contact force acts between two touching surfaces and works in the opposite direction of the sliding object. 

Friction

100

Newton's First Law states that a soccer ball resting on the grass will stay completely still until it is acted up by this.

An Unbalanced Force

200

To fully describe an object's motion, you must state these two things: how fast it is going and where it is headed.

Speed and Direction

200

A type of force that brings an object closer in physical science.

A Pull

200

This property describes the amount of matter in an object, which determines how much it will resist a change in its motion.

Mass

200

This term describes the event when two or more moving objects strike each other, resulting in a transfer of energy.

Collision

200

Newton's Third Law states that for every action force there is an equal but opposite one of these.

Reaction Force
300

If a car travels 60 miles in one hour, "60 miles per hour" is a measurement of this rate.

Speed

300

This is the term for the overall combination of all individual forces acting on a single object.

Net Force

300

To make an object with a very large mass accelerate at the same rate as an object with a small mass, you must apply this.

A Greater Force

300

When a moving pendulum hits a stationary ball, this basic physical quantity is transferred from one object to another.

Energy

300

According to Newton's Second Law, if you push a heavy grocery cart and an empty grocery cart with the exact same force, this cart will speed up much faster. 

The Empty Cart

400

This term describes an object's location relative to a starting point or a background object.

Position

400

When the Net Force on a still object is exactly zero, the forces are described by this term, meaning the object won't move.

Balanced Forces
400

If two identical toy cars are lined up and Car A is kicked harder than Car B, Car A will experience a greater change in this.

Motion (Speed, Acceleration)

400

This is what happens to a rolling soccer ball's Kinetic energy as friction from the grass causes it to slow down and stop.

It transforms into Thermal energy (heat)

400

Newton's First Law is often called the law of this property, which is an object's natural resistance to any change in its motion.

Inertia

500

These four cardinal compass points describe an object's direction of travel.

North, South, East and West

500

This type of force is required to make a stationary object start moving or to change its speed or direction.

Unbalanced Force

500

True or False: An object with a huge mass requires zero force to keep moving at a constant speed in a friction-free vacuum.

True

500

To reduce the friction slowing down a moving object, engineers often apply this type of slippery substance.

Oil, Wax, Lubricant

500

When a rocket launches, the downward push of the exhaust gas is the action force while this is the reaction Force.

The upward movement of the rocket (Thrust, Acceleration)