Basics of Physics Worksheet-3

Basics of Physics Worksheet-3

1. What kind of energy transfer happens when you listen to a battery powered radio?

A. Chemical energy from battery to mechanical sound energy

B. Wave energy to mechanical sound energy

C. Chemical energy from battery to electrical energy to run radio to mechanical sound energy

D. Electrical energy to run radio to mechanical sound energy

2. What is a fuse in a circuit?

A. A thin strip of metal, which lights up in a circuit.

B. A thick strip of metal, which burns up in a circuit.

C. A thin strip of metal, which melts and creates an open circuit when very high current flows through it.

D. A thick strip of metal, which melts and creates an open circuit when very high current flows through it.

3. Which particle is responsible to produce negative electric charge?

A. Proton           B. Electron        C. Neutron        D. Ion

4. Which of the following does not cause change in the earth's surface?

A. Wind                                          B. Ocean waves

C. Running water                         D. Polar ice caps

5. What kind of heat transfer is this? A long steel rod is heated on one end. Fifteen minutes later, the other end starts to heat up.

A. Conduction                               B. Transportation

C. Convection                               D. Radiation

6. What will happen after the light passes through the lens?

A. It will be blocked                    B. It will split into colors

C. It will focus on a point            D. It will spread apart

7. A beam of light bends when it enters into water from air. What is this property of light called?

A. Refraction                                B. Reflection    

C. Transformation                       D. Curvature

8. What is a natural magnet?

A. A rock that is black.                         

B. A rock that has wires particles.

C. A rock that has aligned magnetized iron particles.

D. A rock that has non-aligned magnetized iron particles.

9. Four cars are moving in a car race. Which of the following can explain which car is moving faster?

A. Motion          B. Speed             C. Position         D. Distance

10. Which of the following matter allows sound waves to travel through?

A. Liquid            B. Solid              C. Gas                 D. All of the above

Answer Key:

1.-(c); 2.-(c); 3.-(b); 4.-(d); 5.-(a); 6.-(d); 7.-(a); 8.-(c); 9.-(b); 10.-(d)