2nd Nine Weeks Study Guide

radiation is

Energy that is radiated or transmitted in the form of rays or waves or particles.

conduction

A pan touching a hot stove

radiation

A sun bather being warmed by the sun

Newton's First Law

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Antavious is using a metal spoon to stir his soup. He notices the the spoon starts to feel warm. Why does the spoon feel warm?

Antavious' spoon starts to feel warm because the heat from the soup influences the spoon after a periods of time.

Why does conduction occur more easily between liquids and solids than in a gas?

Conduction occurs easier in liquids and solids because the particles are closer than gas particles.

Car A travels from New York to Miami at 25 m/s. Car B travels from New York to Chicago, also at 25 m/s. Car A and Car B have _________ speeds and ________ velocity.

Equal and different because they are traveling in different directions.

Newton's Third Law

For every action there is an equal and opposite reaction

Newton's Second Law

Force = mass x acceleration

There is a rock sitting on the edge of a 60 ft cliff. If the rock gets pushed over the cliff what type of energy conversion will take place?

Kinetic energy

convection

Noodles rising and falling in boiling water

When you compress a spring together what type of energy does that spring have?

Potential energy

conduction is

The direct transfer of heat from one substance to another substance that it is touching.

Which of the following is the BEST example of radiation? A pot of boiling water, a spoon in a hot liquid, the sun heating the earth, or a marshmallow in a fire.

The sun heating the earth is the best example of radiation.

convection is

The transfer of thermal energy by the circulation or movement of a liquid or gas

Madison is holding a compressed spring but does not release it. Is this an example of potential energy being changed into kinetic?

This isn't potential to kinetic energy because she still has the spring in her hand. If Madison were to release the spring then it would be potential to kinetic.

Keynia turns on the television. What type of energy is the electrical energy converted to when she turns on the television?

electrical

A light bulb converts electrical energy into light energy and _________

thermal

Maria's father started a fire in the fireplace. He crumpled paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed into which type of energy

thermal