9i energy and electricity
DESCRIPTION
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 PresentationTRANSCRIPT
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