2025 physics paper 1 Questions And Answers 2025/ 2026
01.1. Describe the difference between renewable energy resources and non-
renewable energy resources. - CORRECT ANSWER-Non-renewable energy is finite
and will run out because it has a limited supply whereas renewable energy won't
run out because it is naturally replenished at a similar rate that it is used at
01.2. Write down the equation which links density (ρ), mass (m) and volume (V) -
CORRECT ANSWER-density = mass/volume
01.3. The mass of seawater passing through the tidal turbine each second is 824
000 kg.
The density of seawater is 1030 kg/m3
Calculate the volume of seawater passing through the tidal turbine each second. -
CORRECT ANSWER-d = m/v
1030 = 824000/v
v = 824000/1030 =800
v = 800
01.4. As flow speed increases, power output increases.
Give two other conclusions that can be made using information from Figure 2. -
CORRECT ANSWER-When there is a low flow then there is no power output
, The relationship between flow and power output is non-linear
01.5. Compare the environmental impacts of the wind turbine and the tidal
turbine in Figure 3. - CORRECT ANSWER-A wind turbine would make more noise
pollution because it is on land whereas a tidal turbine would make less noise
pollution because it is underwater. The wind turbines could harm birds but the
tidal turbines won't. However, the tidal turbines would harm sea creatures such
as fish and dies out marine ecosystems. The wind turbines are 10x bigger than a
tidal turbine so the wind turbines need more resources to build it during
construction which may mean that more fossil fuels are burnt so building a wind
turbine would contribute to climate change and global warming more.
02.1. Give one hazard in the investigation. - CORRECT ANSWER-the beaker can
break
02.2. Describe how the student could determine the specific heat capacity of
water using the apparatus in Figure 4. - CORRECT ANSWER-First they measure the
mass of the empty beaker using a scale. Then measure a set volume of water eg
15cm3 of water using a measuring cylinder and pour it into the beaker. The
beaker filled with water should be measured in the same way, the mass of the
water should then be calculated by using this formula: mass of water and beaker -
mass of beaker. Measure the initial temperature of the water using a
thermometer. Turn on the power supply and the joulemeter measures the change
in energy to heat the water. Record the final temperature and to calculate
temperature change, use the formula final - initial. Then use the equation E =
mcO, rearrange it so it is E/mO = c
02.3. One source of error in the experiment was energy loss to the surroundings.
01.1. Describe the difference between renewable energy resources and non-
renewable energy resources. - CORRECT ANSWER-Non-renewable energy is finite
and will run out because it has a limited supply whereas renewable energy won't
run out because it is naturally replenished at a similar rate that it is used at
01.2. Write down the equation which links density (ρ), mass (m) and volume (V) -
CORRECT ANSWER-density = mass/volume
01.3. The mass of seawater passing through the tidal turbine each second is 824
000 kg.
The density of seawater is 1030 kg/m3
Calculate the volume of seawater passing through the tidal turbine each second. -
CORRECT ANSWER-d = m/v
1030 = 824000/v
v = 824000/1030 =800
v = 800
01.4. As flow speed increases, power output increases.
Give two other conclusions that can be made using information from Figure 2. -
CORRECT ANSWER-When there is a low flow then there is no power output
, The relationship between flow and power output is non-linear
01.5. Compare the environmental impacts of the wind turbine and the tidal
turbine in Figure 3. - CORRECT ANSWER-A wind turbine would make more noise
pollution because it is on land whereas a tidal turbine would make less noise
pollution because it is underwater. The wind turbines could harm birds but the
tidal turbines won't. However, the tidal turbines would harm sea creatures such
as fish and dies out marine ecosystems. The wind turbines are 10x bigger than a
tidal turbine so the wind turbines need more resources to build it during
construction which may mean that more fossil fuels are burnt so building a wind
turbine would contribute to climate change and global warming more.
02.1. Give one hazard in the investigation. - CORRECT ANSWER-the beaker can
break
02.2. Describe how the student could determine the specific heat capacity of
water using the apparatus in Figure 4. - CORRECT ANSWER-First they measure the
mass of the empty beaker using a scale. Then measure a set volume of water eg
15cm3 of water using a measuring cylinder and pour it into the beaker. The
beaker filled with water should be measured in the same way, the mass of the
water should then be calculated by using this formula: mass of water and beaker -
mass of beaker. Measure the initial temperature of the water using a
thermometer. Turn on the power supply and the joulemeter measures the change
in energy to heat the water. Record the final temperature and to calculate
temperature change, use the formula final - initial. Then use the equation E =
mcO, rearrange it so it is E/mO = c
02.3. One source of error in the experiment was energy loss to the surroundings.
