Science 8 Unit 5 Vocab Check

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a grooved wheel with a rope or cable wrapped over it, used to lift or lower loads.

Front

What is a simple machine?

Back

A simple machine is a device that does work with only one movement, making tasks easier.

Front

What is output force?

Back

Output force is the force that a machine applies to move an object.

Front

What is power in terms of work?

Back

Power is the rate at which work is done, often measured in watts.

Front

What is a screw?

Back

A screw is a simple machine that consists of an inclined plane wrapped around a cylinder, used to hold objects together or lift materials.

Front

What is a lever?

Back

A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called the fulcrum, used to lift or move loads.

Front

What is a wedge?

Back

A wedge is a simple machine that consists of two inclined planes joined together, used to split or cut objects.

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied, indicating how much a machine multiplies force.

Front

What is friction?

Back

Friction is the force that opposes the motion of an object, often causing energy loss in machines.

Front

What is energy?

Back

Energy is the capacity to do work, existing in various forms such as kinetic, potential, thermal, and more.