9i energy and electricity

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9I Energy and Electricity. 1. Which of these is not a form of energy?. Kinetic Petrol Light Sound. Response Grid. 2. Which of these has the most GPE?. A parachutist on a runway A parachutist going into a ‘plane A parachutist jumping out of a ‘plane A parachutist after landing. - PowerPoint PPT Presentation

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9I Energy and Electricity

1. Which of these is not a form of energy?

1 2 3 4

25% 25%25%25%1. Kinetic2. Petrol3. Light4. Sound

Response Grid

2. Which of these has the most GPE?

1 2 3 4

25% 25%25%25%1. A parachutist on a runway2. A parachutist going into a

‘plane3. A parachutist jumping out

of a ‘plane4. A parachutist after landing

Response Grid

3. What are the energy changes in a candle?

1 2 3 4

25% 25%25%25%1. Heat to light2. Heat to sound3. Light to heat4. Chemical to heat and light

Response Grid

4. A machine is something which:

1 2 3 4

25% 25%25%25%1. Changes energy2. Creates energy3. Destroys energy4. Makes things

Response Grid

5. The units for voltage are:

1 2 3 4

25% 25%25%25%1. Amps2. Ohms3. Volts4. Metres

Response Grid

6. Which circuit diagram shows how to measure voltage?

1 2 3 4

25% 25%25%25%1. A2. B3. C4. D

Response Grid

7. Voltage is:

1 2 3 4

25% 25%25%25%1. Another name for current2. A way of counting the cells in a

circuit3. A way of saying how much

energy the current is carrying4. Something which makes it

difficult for current to flow

Response Grid

8. Which statement is not true for a series circuit?

1 2 3 4

25% 25%25%25%1. The voltage is always the same for all components

2. The voltage across each component depends on how much energy it uses

3. The voltage across all the components adds up to the voltage across the cell

4. The voltage can be measured using a voltmeter

Response Grid

Participant Scores0 Participant 10 Participant 20 Participant 30 Participant 40 Participant 5

9. Where is electricity generated?

1 2 3 4

25% 25%25%25%1. In the home2. In a power station3. In the mains4. In the wires

Response Grid

10. The energy in electricity comes from:

1 2 3 4

25% 25%25%25%1. Energy stored in fuels, winds or water

2. Energy stored in food3. Energy in the wires4. Energy in the switches

Response Grid

11. A cell is:

1 2 3 4

25% 25%25%25%1. A jail2. A store of chemical energy3. Mains electricity4. A power pack

Response Grid

12. High voltages are dangerous because:

1 2 3 4

25% 25%25%25%1. They cost a lot to produce2. They do not transfer much

energy3. They can transfer a lot of

energy4. They are poisonous

Response Grid

13. Which statement is true?

1 2 3 4

25% 25%25%25%1. You always put more energy into a machine than you get out

2. You always get more energy out of a machine than you put in

3. The amount of energy you get out of a machine is always exactly the same as the energy you put in

4. The amount of energy you get out of a machine does not depend on the amount you put in

Response Grid

14. Which is the correct energy flow diagram for a television?

1 2 3 4

25% 25%25%25%1. A2. B3. C4. D

Response Grid

15. Which forms of energy are often produced as wasted energy?

1 2 3 4

25% 25%25%25%1. Heat and light2. Heat and sound3. Sound and light4. Sound and kinetic

Response Grid

16. An efficient machine:

1 2 3 4

25% 25%25%25%1. Does not waste much energy2. Wastes a lot of energy3. Is more expensive to run than an

inefficient machine4. Is more expensive to buy than an

inefficient machine

Response Grid

Participant Scores0 Participant 10 Participant 20 Participant 30 Participant 40 Participant 5

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