Laws Of Motion, Momentum, Work, and Pulleys

Front

The ramp helps the man do work by reducing the input ____________.

Back

force

Front

Kinetic energy depends on_________ and _________.

Back

speed and mass

Front

Which letter shows where kinetic energy is at its highest point?

Back

X

Front

Inertia is ...

Back

The tendency of an object at rest to stay at rest or an object in motion to stay in motion.

Front

You hit a wall with a stick. The equal but opposite reaction is _____

Back

the wall pushes against the stick.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

What is 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 does a pulley do?

Back

A pulley changes the direction of the force applied to lift an object.