Name: _______________________________________________ 	

  	
  	
Physics Paper 1 type questions - Foundation	
 
Questions involving calculations

  	

  	
Time: 45 minutes	
  	
Total marks available: 45	
  	
Total marks achieved: ______ 	

  	

  	

  	

  	

  	

  	

  	

	

 

Questions

Q1.
 
A house has a boiler to provide hot water.
One type of boiler burns natural gas.
Natural gas is a non-renewable source of energy.
(i)  State a renewable source of energy that could be used to heat water in a house.
(1)
 ............................................................................................................................................. 
Figure 14 shows some information in a booklet supplied with a gas boiler.

Figure 14
(ii)  Calculate the energy transferred to the water by the boiler in one second.
(2)

energy transferred to water = ........................................................... J
 
(Total for question = 3 marks)

Q2.
 
Shot-put is an Olympic event. 
The shot is a heavy ball. 
An athlete throws the shot as far as possible.
A sports scientist analyses an athlete's throw to help improve performance.
In one throw, the shot continues to rise by another 1.3 m after it leaves the athlete's hand. 
The mass of the shot is 7.26 kg.
Calculate the amount of gravitational potential energy gained by the shot.
(2)

gravitational potential energy gained = ........................................................... J
 
(Total for question = 2 marks)

Q3.
 
A rock falls off the top of a cliff of height h.
Figure 3 shows the rock falling.
The Earth exerts a force of 150 N on the rock.

Figure 3
The work done by this force when the rock falls from the top to the bottom of the cliff is 2700 J.
(i)  Calculate the height, h, of the cliff.
(2)

h = ........................................................... m
(ii)  State the value of the kinetic energy of the rock just before it hits the ground.
(1)

kinetic energy = ........................................................... J
(iii)  The mass of the rock in Figure 3 is 15 kg.
Calculate the velocity of the rock just before it reaches the bottom of the cliff.
(2)

velocity = ........................................................... m/s
 
(Total for question = 5 marks)

Q4.
 
This photograph shows a fan.

The blades of the fan are turned by an electric motor.
In one second, the motor gets 200 J of electrical energy from the mains supply. 
Only 180 J of this energy is used to turn the blades of the fan.
The rest of the energy is wasted.
(i)  Calculate how much of the 200 J of energy is wasted.
(1)

wasted energy = ........................................................... J

(ii)  State what happens to the wasted energy.
(1)
.............................................................................................................................................
.............................................................................................................................................

(iii)  Calculate the efficiency of the motor.
(2)

efficiency = ...........................................................

Q5.
 
Figure 3 shows the energy transferred by one solar panel in one second.

Figure 3
(i)   Use the information in Figure 3 to calculate the efficiency of the solar panel in generating electricity.
(3)

efficiency = ........................................................... 
(ii)  Give a reason why some of the energy reaching the panel from the Sun is not used to generate electricity.
(1)
 ............................................................................................................................................. 
 ............................................................................................................................................. 
 
(Total for question = 4 marks)

Q6.
 
Fuel weighing 230 000 N is pumped into an aircraft.
This fuel moves upwards through a vertical height of 4.7 m.
The power developed by the pump is 1600 W.
Calculate the time needed to refuel the aircraft.
(3)

time = ........................................................... s

(Total for question = 3 marks)

Q7.
 
Some technicians are investigating factors affecting the braking distance of a bicycle. 
They start by investigating how the speed of a bicycle affects the braking distance.
Figure 8 is a graph of their results.

Figure 8
(i)   When the bicycle is travelling at a speed of 15 m/s, the kinetic energy (KE) of a cyclist and the bicycle is 9300 J.
Calculate the mass of the cyclist and the bicycle.
Use the equation m = 
(3)

mass = ........................................................... kg
(ii)  Describe the energy transfer that takes place as this cyclist brakes.
(2)
 ............................................................................................................................................. 
 ............................................................................................................................................. 
 ............................................................................................................................................. 
 ............................................................................................................................................. 
 
(Total for question = 5 marks)

Q8.
 
An electric heater is connected to a 230 V supply.
The power supplied to the heater is 2.6 kW.
Calculate the current in the heater.
(3)

current = ........................................................... A
 
(Total for question = 3 marks)

Q9.
 
A student is investigating a filament lamp.
(a) (i) Complete the sentence by putting a cross () in the box next to your answer.
The current in the filament lamp is a flow of
(1)
  A   protons
  B   neutrons
  C   electrons
  D   atoms

(ii) The student uses this circuit in his investigation.

State what is measured by the meters.
(2)
Meter 1 measures
 ............................................................................................................................................. 
Meter 2 measures
 ............................................................................................................................................. 
(b)   The normal operating potential difference (voltage) and current of the filament lamp is 6 V, 0.4 A.
Calculate the energy supplied to the lamp under these conditions in 20 s.
(2)

energy = ........................................................... J

(c)   The graph shows how current varies with potential difference (voltage) for another filament lamp.

Calculate the resistance of the lamp when the current in the lamp is 0.3 A.
resistance = potential difference ÷ current (R = V / I)
(3)

resistance = ........................................................... Ω
(Total for Question = 8 marks)

Q10.
 
A technician investigates the potential difference (voltage) across an electrical heater.
This circuit diagram shows the circuit the technician uses.

(i)  Add a voltmeter to the circuit which will measure the potential difference (voltage) across the heater.
(2)
(ii)  The resistance of the heater is 15 Ω.
The current in the heater is 0.56 A.
Calculate the potential difference (voltage) across the heater.
(2)

potential difference = ........................................................... V

(iii)  The technician changes the value of the variable resistor.
She measures the new voltage across the heater and the new current in it.
Here are her results:
voltage = 6.0 V                   current = 0.40 A.
Calculate the amount of electrical energy transferred in 30 s by the heater.
(2)

energy transferred = ........................................................... J

(iv)  The total energy supplied by the battery in 30 s is 144 J.
Explain why your answer in (iii) is not the same as the total energy supplied by the battery.
(2)
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