Forces and Motion

Force

100

A push or pull exerted on an object is called what?

Force

200

We worked against this force in the egg drop activity.

Gravity

300

This describes the amount of matter in an object.

Mass

400

Under the force of gravity, objects with mass have what? (It was important to keep this low during the egg drop.)

Weight

500

This force causes objects to rotate.

Torque

Motion

100

This is the rate at which an object moves over time.

Speed

200

The speed and direction of an object is called what?

Velocity

300

The rate at which an object's velocity changes over time is called what?

Acceleration

400

Objects in motion have this: a measure of mass and velocity.

Momentum

500

Sometimes, forces act over time. The resulting change in momentum is called what?

Impulse

Resistance

100

This force resists movement between two surfaces in contact.

Friction

200

Can an object accelerate beyond light speed?

No

300

The tendency of objects to resist changes in motion is called what?

Inertia

400

We used this force to slow the acceleration of our falling eggs.

Air resistance

500

This device can detect or resist changes in orientation with its angular momentum. It has many uses, including as a toy, in aircraft, and in mobile phones.

Gyroscope

Laws of Motion

100

Along with the Law of Universal Gravitation, who created the three Laws of Motion in the late 1600s?

Isaac Newton

200

Objects remain at rest or in motion, unless what?

Acted upon by a force.

300

Can an object's speed and direction change without a force acting on it?

No

400

Force equals mass times what?

Acceleration

500

For every action, there is what?

An equal and opposite reaction