Energy 4.1-4.3 Review

Three important things that you need to know about energy...

• Energy can be stored or transferred

• Energy cannot be created or destroyed

• Energy tends to spread out

• Energy in a transfer always increases.

Organize these options into the right categories

Groups:

(a) Energy Stores

,

(b) Energy Transfers

• Heat energy

• Electrical energy

• Elastic energy

• Kinetic energy

• Chemical energy

• Light energy

• Gravitational potential energy

• Internal energy

• Work done

• Sound energy

• Nuclear energy

What types of energy are there in the picture?

• Light energy

• Electrical energy

• Heat energy

• Kinetic energy

What types of energy are in the picture?

• Kinetic energy

• Heat energy

• Chemical energy

• Electrical energy

What are three forms of energy given off by a TV?

• Light

• Sound

• Heat

• Electrical

Energy can be transferred from one form to another.

Groups:

(a) Decreasing

,

(b) Increasing

• Light

• Kinetic

• Sound

• Chemical energy

• Heat

• GPE

What is the unit for energy?

• Joule

• Newton

• Kilogram

• Meter

What is the efficiency of the filament lamp? Just give the percent as a number (e.g. 30 = 30%)

Mathematical Equivalence

OFF

What does E_K stand for?

• Kinetic energy

• Kilograms

• Kindergarten energy

• Kilogram energy

What does E_P stand for?

• Kinetic energy

• Gravitational potential energy

• Productive energy

• Practical energy