Physics Final

Front

What happens to an object when the net force acting on it is zero?

Back

The object is either at rest or moving at a constant speed.

Front

When does gravity do positive work on an object?

Back

When an object is moving down.

Front

What type of energy does a moving object possess?

Back

Kinetic energy.

Front

How can a bowling ball and a golf ball have the same momentum?

Back

The golf ball must be moving much faster than the bowling ball.

Front

What types of work can gravity do?

Back

Both positive and negative work.

Front

Define net force.

Back

The overall force acting on an object when all the individual forces are combined.

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is gravitational potential energy?

Back

The energy an object possesses due to its position in a gravitational field.

Front

Explain the principle of conservation of momentum.

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

What is the formula for calculating kinetic energy?

Back

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