Basics of Physics Worksheet-10

Basics of Physics Worksheet-10

1. What happens when a large amount of current flows through a circuit that is equipped with a fuse?

(a) Fuse will melt and close the circuit.

(b) Fuse will freeze and close the circuit.

(c) Fuse will melt and open the circuit.

(d) Fuse will trap the electrons.

2. How many types of electric charges are there?

(a) Three - Negative charge, positive charge and neutral charge.

(b) Two - North charge and south charge.

(c) Two - Negative charge and positive charge.

(d) One - Electron charge.

3. What is the scientific name of the distance labeled "B" in the above picture?

(a) Wavelength                              (b) Frequency

(c) Velocity                                     (d) Amplitude

4. What will happen if you heat a copper rod by 50 degree Celsius from the room temperature?

(a) It will deform.                         (b) It will shrink.

(c) It will expand.                         (d) It will deform and shrink.

5. What are the types of lenses shown in the picture?

(a) 1: Inner lens 2: Outer lens

(b) 1: I shape lens 2: Oval lens

(c) 1: Concave lens 2: Convex lens

(d) 1: Convex lens 2: Concave lens

6. The change in frequency of sound waves as a source of sound moves toward or away from you, is called the ______.

(a) Doppler effect                          (b) Polar effect

(c) Moving effect                           (d) Reflection

7. Which of the following metal does not have atoms that act as tiny magnets?

(a) Iron               (b) Cobalt           (c) Gold              (d) Nickel

8. An object is moving with a speed of 25 km/hour. How far will it go in 3 hours?

(a) 26 km           (b) 50 km           (c) 75 km           (d) 100 km

9. As shown in picture, a box is exerting 25 kilogram-force on a stationary hand. What is the opposite force applied by the hand to the box?

(a) 0 kilogram force                     (b) 100 kilogram-force

(c) 25 kilogram force                   (d) 2 × 25 kilogram force

10. What kind of energy transformation do loudspeakers do?

(a) Chemical energy to Sound energy

(b) Electrical energy to Heat energy

(c) Potential energy to Sound energy

(d) Electrical energy to Sound energy

Answer Key:

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