6th Benchmark 2 Review

Front

What is kinetic energy?

Back

Energy of motion.

Front

Which has more kinetic energy: a car or a girl moving at the same speed?

Back

The car has more kinetic energy because it has more mass.

Front

What allows for better transmission of energy?

Back

Thin materials or metal.

Front

What is the rate of change of position with respect to time?

Back

Speed.

Front

At which point does an object have the greatest gravitational potential energy?

Back

At the highest point in its path.

Front

What is gravitational potential energy (GPE)?

Back

Energy stored in an object due to its height above the ground.

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv² (where m is mass and v is velocity).

Front

What happens to kinetic energy if the speed of an object doubles?

Back

The kinetic energy increases by a factor of four.

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 acceleration?

Back

The rate of change of velocity over time.