QC Review

Hold two pieces of wood together ________________________.

• a. screw

• b. inclined plane

• c. wheel and axle

• d. wedge

Cut bread ________________.

• a. pulley

• b. wedge

• c. lever

• d. inclined plane

Look at the picture. What form of energy do you see?

• a. Mechanical energy

• b. Sound energy

• c. Light energy

• d. Energy

Look at the picture. Is real car a simple machine?

• a. True

• b. False

An example of sound energy is speakers.

• a. True

• b. False

Look at the picture. Like (same) charges attract.

• a. True

• b. False

Opposite charges attract.

• a. True

• b. False

This is an example of ______________________ .

• a. neutral charges

• b. negatively charges

• c. positively charges

• d. equal charges

This is an example of ______________________ .

• a. neutral charges

• b. negatively charges

• c. positively charges

• d. equal charges

A __________________ is a machine made up of two or more simple machines.

• a. simple machine

• b. complex machine