Basics of Physics

Basics of Physics Worksheet-4

1. Which of the following is an example of stored energy?

A. Cell battery                              B. Stretched rubber band

C. Inflated balloon                       D. All of the above

2. What is a circuit breaker?

A. A device that close a switch and creates a close circuit when very low current flows

B. A device that opens a switch and creates an open circuit when very high current flows through it.

Basics of Physics Worksheet-5

1. What does a solar cell produce?

A. Solar energy                            B. Electrical Energy

C. Thermal (Heat) Energy         D. Rainbow effect

2. What is the danger of short circuit?

A. It produces a bad smell.                 

B. Short circuit wastes energy.

C. Hot wires can start a fire and also too much current can damage electric devices.

Basics of Physics Worksheet-6

1. Why can a solar cell not work in the night?

A. It needs heat to work             B. It needs sunlight to work

C. It can not see in dark              D. It will be too cold to work in the night

2. Electric charge stored on an object is a form of ______.

A. Electric current                       B. Static electricity

C. Dynamic electricity                 D. Magnetic electricity