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Worksheets

Y11 GCSE Topics 1 and 2

Total questions: 65

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

What is the formula for Kinetic Energy?

a)

Ek=1/2mv2

b)

Ek=2mv2

c)

Ek=1/2mv3

d)

Ek=2mv3

2.

Gravitational potential energy is stored when an object is …

a)

heated

b)

stretched

c)

lifted

d)

accelerated

3.

Kinetic energy can be calculated using the equation Ek= ½ mv2

In this equation 'v' is …

a)

velocity

b)

energy

c)

mass

d)

weight

4.

Which unit is energy measured in?

a)

kilograms

b)

watts

c)

joules

d)

newtons

5.

The law of conservation of energy states that …

a)

energy is always constant

b)

energy cannot be transferred or created, only destroyed

c)

energy cannot be created or destroyed, only transferred

d)

energy cannot be transferred, only created and destroyed

6.

In what unit is charge measured?

a)

Volts

b)

Amps

c)

Quarks

d)

Coulombs

7.

What unit is used to measure voltage (or potential difference)?

a)

Amps (A)

b)

Volts (V)

c)

Coulombs (C)

d)

Joules (J)

8.

As a filament bulb gets brighter, what happens to its resistance?

a)

The resistance decreases

b)

The resistance stays the same

c)

The resistance increases

d)

The resistance becomes zero

9.

A car headlamp is rated as 12 V, 2 A.

What is its power rating?

a)

12 W

b)

14 W

c)

24 W

d)

122 W

10.

The correct form of Ohm's Law, linking potential difference V, current I and resistance R is…

a)

V = I × R

b)

V = I + R

c)

V = I/R

d)

V = R/I

11.

A current of 0.5 A flows for 2 minutes in a circuit.

The charge flow is…

a)

1 C

b)

2 C

c)

60 C

d)

120 C

12.

Why is distributing the same power through the National Grid more efficient at a lower current?

a)

Low voltages are safer

b)

High currents heat up the cables, wasting energy

c)

High currents get more electricity through to the consumer

d)

High voltages are safer

13.

What colour is the neutral wire in a plug?

a)

Blue

b)

Brown

c)

Yellow

d)

Green & Yellow

14.

What could a light-dependent resistor be used to control?

a)

The temperature of a fridge

b)

The temperature of the hot water in a water boiler

c)

The blood flow

d)

The timing for a streetlight

15.

Which statement describes a parallel circuit?

a)

A single loop with the same current passing through all components

b)

More than one loop with the same current passing through all components

c)

A single loop with different currents passing through each component

d)

More than one loop with different currents passing through each loop

16.

Which of these materials would NOT act as an electrical insulator?

a)

Rubber

b)

Glass

c)

Copper

d)

Wood

17.

A student is attempting to measure the resistance of a component.

What should the student do to obtain a range of results?

a)

Adjust the variable resistor

b)

Swap the cells

c)

Reverse the ammeter

d)

Swap the ammeter and voltmeter

18.

The equation linking charge flow, Q, and current, I, is…

a)

Q = I/t

b)

Q = I × t

c)

Q = t/I

d)

Q = I + t

19.

Look at this circuit.

What is the total resistance of this combination of resistors?

a)

2 Ohms

b)

8 Ohms

c)

15 Ohms

d)

35 Ohms

20.

An LED is an electrical device. What does 'LED' stand for?

a)

Low-energy device

b)

Light-efficient dimmer

c)

Low-efficiency diode

d)

Light-emitting diode

21.

What type of current do cells and batteries provide?

a)

a.c. only

b)

d.c. only

c)

a.c. and d.c.

d)

neither a.c. nor d.c.

22.

Which of these statements about a diode is true?

a)

A diode lets current through in only one direction

b)

A diode lets current through in both directions

c)

A diode has low resistance in all arrangements

d)

A diode has zero resistance

23.

Which of these is NOT a definition of power?

a)

Rate of doing work

b)

Rate of energy transfer

c)

Rate of change of velocity

d)

Joules transferred per second

24.

An LED bulb transfers 200J of energy in 20s. Its power rating is …

a)

200 W

b)

20 W

c)

10 W

d)

1 W

25.

Which of these renewable resources still has links to climate change?

a)

solar power

b)

hydroelectric power

c)

biogas

d)

tidal power

26.

Kinetic energy is gained when an object is …

a)

heated

b)

stretched

c)

lifted

d)

accelerated

27.

The law of conservation of energy states that …

a)

energy is always constant

b)

energy cannot be transferred or created, only destroyed

c)

energy cannot be created or destroyed, only transferred

d)

energy cannot be transferred, only created and destroyed

28.

As you get further from Earth's surface, the gravitational field strength

a)

decreases

b)

remains constant

c)

increases

d)

becomes infinite

29.

Which of these is NOT a possible value for the efficiency of a device?

a)

0.25

b)

25

c)

25%

d)

2.50%

30.

When an energy transfer occurs in a closed system, the total energy …

a)

remains constant in the same forms

b)

remains constant but in different forms

c)

increases overall

d)

decreases overall

31.

Which of these is NOT a fossil fuel?

a)

Coal

b)

Uranium

c)

Natural gas

d)

Oil

32.

Which of these is a renewable resource?

a)

Uranium

b)

Wind

c)

Coal

d)

Oil

33.

Which of these does the gain in gravitational potential energy for an object NOT depend upon?

a)

The height the object is lifted

b)

The mass of the object

c)

The surface area of the object

d)

The gravitational field strength where the object is

34.

Kinetic energy

a)

Ek = ½ m v² [0.5 x mass x (speed)²]

b)

Ep = m g h [mass x gravitational field strength x height]

c)

P = E ÷ t (energy transferred ÷ time)

d)

E = Q V [Charge flow x potential difference]

35.

Gravitational potential energy

a)

Ep = m g h [mass x gravitational field strength x height]

b)

Efficiency = Useful output power ÷ total input energy power(x100)

c)

P = W ÷ t [Work done ÷ time]

d)

Efficiency = Useful output energy transfer ÷ total input energy transfer (x100)

36.

Power (work done)

a)

ρ = m ÷ V [mass ÷ volume]

b)

P = W ÷ t [Work done ÷ time]

c)

Efficiency = Useful output power ÷ total input energy power(x100)

d)

Ep = m g h [mass x gravitational field strength x height]

37.
Efficiency (energy)
a)
Ep = m g h [mass x gravitational field strength x height]
b)
E = Q V [Charge flow x potential difference]
c)
Efficiency = Useful output energy transfer ÷ total input energy transfer (x100)
d)
E = P t [power x time]
38.
Efficiency (power)
a)
Efficiency = Useful output power ÷ total input energy power(x100)
b)
E = Q V [Charge flow x potential difference]
c)
P = V I [Potential difference x current]
d)
P = W ÷ t [Work done ÷ time]
39.
Potential difference
a)
E = Q V [Charge flow x potential difference]
b)
ρ = m ÷ V [mass ÷ volume]
c)
V = I R [current x resistance]
d)
v = f λ [frequency x wavelength]
40.
Charge flow
a)
E = Q V [Charge flow x potential difference]
b)
E = P t [power x time]
c)
P = W ÷ t [Work done ÷ time]
d)
Q = I t [current x time]
41.
Density
a)
s = v t [speed x time]
b)
W = m g [mass x gravitational field strength]
c)
ρ = m ÷ V [mass ÷ volume]
d)
p = m v [mass x velocity]
42.

What is the same as Work Done?

a)

Power

b)

Energy Transferred

43.

Which one is a Battery?

a)
b)
c)
d)
e)
44.

Which one is a Fuse?

a)
b)
c)
d)
e)
45.

Which one is a Filament bulb?

a)
b)
c)
d)
e)
46.

Which one is a LED?

a)
b)
c)
d)
e)
47.

Which one is a Switch?

a)
b)
c)
d)
e)
48.

Which one is a Resistor?

a)
b)
c)
d)
e)
49.

Which one is a Variable Resistor?

a)
b)
c)
d)
e)
50.

Which one is a Diode?

a)
b)
c)
d)
e)
51.

Which one is a LDR?

a)
b)
c)
d)
e)
52.

Which one is a Thermistor?

a)
b)
c)
d)
e)
53.

Which one is the Graph for an Ohmic Conductor?

a)
b)
c)
54.

Which one is the Graph for an Filament Lamp?

a)
b)
c)
55.

Which one is the Graph for an Diode?

a)
b)
c)
56.

Which one is a Thermistor?

a)

It senses Light. The brighter the light the lower the resistance.

b)

It senses Temperature. The hotter the temperature the lower the resistance.

57.

Which one is a series circuit?

a)

Potential Difference is Shared

b)

Potential Difference is the same for each component

58.

Which one is a parallel circuit?

a)

Potential Difference is Shared

b)

Potential Difference is the same for each component

59.

Which one is a parallel circuit?

a)

Current is the same everywhere

b)

Current is shared between branches

60.

Which one is a series circuit?

a)

Current is the same everywhere

b)

Current is shared between branches

61.

Which one is a series circuit?

a)

Resistance adds up

b)

Resistors reduce the total resistance

62.

Which one is a parallel circuit?

a)

Resistance adds up

b)

Resistors reduce the total resistance

63.

Select all the features of the UK Mains Supply

a)

AC

b)

DC

c)

230 V

d)

50Hz

e)

50 V

64.

Which one is a Neutral Wire?

a)

Brown. Provides the alternating potential difference

b)

Blue. Completes the circuit and carries away current

c)

Green and Yellow. Only carries current when there is a fault

65.

Which does the national grid use?

a)

High Potential Difference

b)

High Current

c)

Low Potential Difference

d)

Low Current

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