Ch. 4 Vocab

Front

What is the pivot point in a lever called?

Back

Fulcrum

Front

What type of simple machine is a seesaw?

Back

Lever

Front

What does a simple machine allow users to do?

Back

Apply less force over a longer distance, reduce the amount of force needed to do work, change the direction of the applied force - all of the above.

Front

Which of the following is not a type of simple machine: spring, screw, pulley, wedge?

Back

Spring

Front

What is the term for the amount by which a machine multiplies input force?

Back

Mechanical advantage.

Front

Define a lever.

Back

A simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum.

Front

What are the three main components of a lever?

Back

Fulcrum, load, and effort.

Front

What is the purpose of a wedge?

Back

To split or separate objects by applying force.

Front

What is an example of an inclined plane?

Back

A ramp.

Front

What is the function of a pulley?

Back

To change the direction of force applied to lift an object.