PS3.3 KE, Mass, and Speed

Front

What is kinetic energy?

Back

Energy in motion.

Front

What does mass refer to?

Back

How much matter is in an object.

Front

What does a graph showing no movement indicate?

Back

Not moving.

Front

What is the formula for kinetic energy?

Back

KE = 1/2(m)(v)².

Front

How does doubling the mass of an object affect its kinetic energy?

Back

It will increase the KE and will show a linear or proportional line on a graph.

Front

How does velocity affect kinetic energy?

Back

Doubling the velocity increases KE exponentially.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on mass.

Front

What is the unit of measurement for kinetic energy?

Back

Joules (J).

Front

What is the difference between speed and velocity?

Back

Speed is scalar (magnitude only), while velocity is vector (magnitude and direction).

Front

What is an example of kinetic energy in everyday life?

Back

A moving car or a running athlete.