2nd Nine Weeks Exam Review

Which bike is accelerating?

• A bike going at a constant speed of 20mph

• a bike not moving

• a bkie going in a straight line at a constant speed

• a bike going around a track at a constant speed

A glow stick is an example of light energy being transformed from _____ energy.

• chemical

• electrical

• mechanical

• thermal

Which is an example of nuclear energy being converted into heat and light energy?

• a volcano

• the sun

• a coal burning power plant

• a rocket engine

The sun heats the earth mainly through

• conduction

• convection

• radiation

• fusion

What does a flat, horizontal line represent on a speed vs. time graph?

• no motion

• constant speed

• constant acceleration

• increasing speed

What does a flat, horizontal line represent on a distance vs. time graph?

• no motion

• constant speed

• constant acceleration

• increasing speed

Which law states that an object at rest will remain at rest unless acted on by an unbalanced force?

• Law of Gravity

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

What form of energy does a compressed spring have?

• Kinetic

• thermal

• potential

• chemical

When you burn wood, the chemical energy of the wood is transformed into what kind of energy?

• electrical

• mechanical

• electrical and heat

• heat and light

Heat always travels

• from the cooler object to the warmer object

• from the warmer object to the cooler object

• in both directions

• in a circle