Physics Guided by Mr. Ang CB Tel: 017-480 5531

Physics Guided by Mr. Ang CB Tel: 017-480 5531SPM

REVISION E FORM 5

1. The velocity of light in vacuum is 3 x 108 ms-1. The refractive index of water is 1.30. What is the velocity of light in the water?

2. Which of the distances labelled A, B, C or D, represents one wavelength?

3. Draw the pattern of the wave after the reflection occur:

4. Diagram below shows the diffraction of water waves in a ripple tank. When x decreases, the effect of diffraction will

A decreasesB increasesC remains the same

5. Diagram below shows a ship in front of a cliff. It produces a loud sound which travels at a velocity of 330 ms-1. An echo is heard 4 seconds later.

Calculate the distance between the ship and the cliff.

6. An electric bulb is labeled "240V,25W. How much energy is used by the bulb in one minute if the bulb is connected to a 240V power supply?

7. Diagram below shows a wire coiled around an iron rod. What is the magnetic polarity at P, Q and R?

8. Draw the truth table for the following combination of logic gate

9. Diagram below shows a circuit consisting of two resistors and a bulb.

When switch S is opened, the reading of the ammeter is 1.5 A. What is the reading of the voltmeter when the switch is closed?

10. Diagram shows a circuit. When the switch, S is opened and then closed, the reading of the ammeter is I1 and I2 respectively.

What the ratio of I1 : l2 ?

11. Both circuit are using the same cell. What is the internal resistance and the electromotive force of the cell?

12. Diagram below shows a coil of wire placed next to a magnet.The galvanometer pointer deflects when the magnet is pushed into the coil.

A The magnetic pole is reversedB The number of turns of coils is increasedC The coil is made from insulated wire,D The magnet is pushed slowly into the coil.