Electrical to Light Energy Practice Exercise 2

Question 1

A school laboratory uses a powerful microscope with a built-in light. The light appears dim even though the switch is on. What is the most likely cause?

Question 2

A school laboratory uses a powerful microscope with a built-in light. The light appears dim even though the switch is on. What is the most likely cause? (1 mark)

Question 3

A school laboratory uses a powerful microscope with a built-in light. The light appears dim even though the switch is on. What is the most likely cause? (1 mark)

Question 4

A student connects a bulb to a battery using very thin wires. The bulb glows faintly. What change would make the bulb brighter?

Question 5

A student connects a bulb to a battery using very thin wires. The bulb glows faintly. What change would make the bulb brighter? (1 mark)

Question 6

A student connects a bulb to a battery using very thin wires. The bulb glows faintly. What change would make the bulb brighter? (1 mark)

Question 7

A student connects a bulb to a battery using very thin wires. The bulb glows faintly. What change would make the bulb brighter? (1 mark)

Question 8

A town changes all street lights to LED lamps but notices some lights flicker at night. What could be the problem?

Question 9

A town changes all street lights to LED lamps but notices some lights flicker at night. What could be the problem? (1 mark)

Question 10

A town changes all street lights to LED lamps but notices some lights flicker at night. What could be the problem? (1 mark)

Question 11

How do LEDs produce light from electricity?

Question 12

How do LEDs produce light from electricity? (1 mark)

Question 13

How do LEDs produce light from electricity? (1 mark)

Question 14

How do LEDs produce light from electricity? (1 mark)

Question 15

In the diagram, a string of decorative lights is connected in parallel. One bulb goes out, but the rest keep working. Why?

Question 16

In the diagram below, a string of decorative lights is connected in parallel. One bulb goes out, but the rest keep working. Why? (1 mark)

Question 17

In the diagram below, a string of decorative lights is connected in parallel. One bulb goes out, but the rest keep working. Why? (1 mark)

Question 18

In the diagram below, a string of decorative lights is connected in parallel. One bulb goes out, but the rest keep working. Why? (1 mark)

Question 19

In the diagram below, a string of decorative lights is connected in parallel. One bulb goes out, but the rest keep working. Why? (1 mark)

Question 20

What energy change takes place when the street lamp is switched on?

Question 21

Using the diagram below, What energy change takes place when the street lamp is switched on? (1 mark)

Question 22

Using the diagram below, What energy change takes place when the street lamp is switched on? (1 mark)

Question 23

Using the diagram below, What energy change takes place when the street lamp is switched on? (1 mark)

Question 24

Using the diagram below, What energy change takes place when the street lamp is switched on? (1 mark)

Question 25

When electrical energy is converted to light energy in a bulb, what other type of energy is also produced?

Question 26

When electrical energy is converted to light energy in a bulb, what other type of energy is also produced? (1 mark)

Question 27

When electrical energy is converted to light energy in a bulb, what other type of energy is also produced? (1 mark)

Question 28

When electrical energy is converted to light energy in a bulb, what other type of energy is also produced? (1 mark)

Question 29

Which energy transformation takes place in an electric bulb?

Question 30

Which energy transformation takes place in an electric bulb? (1 mark)

Question 31

Which energy transformation takes place in an electric bulb? (1 mark)

Question 32

Which energy transformation takes place in an electric bulb? (1 mark)

Question 33

Which type of bulb is most efficient at converting electrical energy into light energy?

Question 34

Which type of bulb is most efficient at converting electrical energy into light energy? (1 mark)

Question 35

Which type of bulb is most efficient at converting electrical energy into light energy? (1 mark)

Question 36

Which type of bulb is most efficient at converting electrical energy into light energy? (1 mark)

Question 37

A farmer installs solar-powered lamps in his greenhouse. On cloudy days, the lamps stay dim even when switched on. Why does this happen?

Question 38

A farmer installs solar-powered lamps in his greenhouse. On cloudy days, the lamps stay dim even when switched on. Why does this happen? (1 mark)

Question 39

A farmer installs solar-powered lamps in his greenhouse. On cloudy days, the lamps stay dim even when switched on. Why does this happen? (1 mark)

Question 40

A farmer installs solar-powered lamps in his greenhouse. On cloudy days, the lamps stay dim even when switched on. Why does this happen? (1 mark)

Quiz Questions (40 questions)