Energy Unit Review

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. For example, when an oven mitt gets warmer while holding a hot baking dish.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves. An example is a marshmallow toasting over a fire.

Front

What is a screw in terms of simple machines?

Back

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

Front

What is a wedge in terms of simple machines?

Back

A wedge is a device that is wider at one end and thinner at the other, used to split or cut objects.

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft that is designed to support movement and change the direction of force.

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 are chemical bonds?

Back

Chemical bonds are the connections between atoms in a molecule. Breaking these bonds releases energy for the body to use.

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, including kinetic, potential, thermal, and chemical energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.