Edexcel GCSE Combined Science Paper 5: Physics 1 Foundation June 2018 question paper 1SC0/1PF

Which of these speeds would be normal for a person walking?

Figure 1 shows a block hanging from a spring balance.

Use a word from the box to complete the sentence below.

The quantity measured by the spring balance in Figure 1 is

A toy car has a mass of 0.10 kg. The toy car accelerates at 2.0 m/s².

Calculate the force producing this acceleration. State the unit.

Use the equation

F = m × a

force =_........ unit =_........

Use words from the box to complete the sentences below.

Vectors have size and_........ .

Scalars have only_........ .

A sound wave in air travels a distance of 220 m in a time of 0.70 s.

State the equation linking speed, distance and time.

Calculate the speed of the sound wave in air.

wave speed =_........ m/s

Figure 2 shows water waves spreading out from a source.

A student measures the wavelength of the waves.

He uses a ruler to measure the distance from one crest to the next crest.

Explain how to improve the student’s method for measuring the wavelength.

Sound waves are longitudinal waves.

Water waves are transverse waves.

Describe the difference between longitudinal waves and transverse waves.

Figure 3 shows a spinning flywheel.

State how energy is stored in a spinning flywheel.

State one way to increase the amount of energy stored in the flywheel.

Figure 4 shows a skier going down a hill.

She descends through a vertical height of 200 m.

The skier’s mass is 65 kg.

Calculate the change in gravitational potential energy.

Use the equation

Δ GPE = m × g × Δ h

Take the gravitational field strength, g, as 10 N / kg.

change in gravitational potential energy =_........ J

At the bottom of the slope her speed was 36 m/s.

Calculate her kinetic energy at the bottom of the slope.

Use the equation

kinetic energy =_........ J

Describe how her speed at the bottom of the slope could be determined.

State two non‑renewable energy sources.

Figure 5 shows the renewable energy sources used in the UK in 2015.

Figure 5 is to scale.

State the energy source that gave the greatest amount of renewable energy for the UK in 2015.

Justify your choice of energy source in part (i).

State which of these energy sources gave about 20% of the energy from renewable sources for the UK in 2015.

Figure 6 shows all the energy sources used in Canada in 2014 and a

change 1_........

effect on the environment_........

change 2_........

effect on the environment_........

Figure 7 shows a wind turbine.

Explain how unwanted energy transfers could be reduced in the gear box.

A student investigates what happens when light travels from air to glass.

Figure 8 shows some of the apparatus used in the investigation.

In Figure 8, angle Y is the angle of

Figure 9 is a graph of the student’s results.

Use the graph to calculate a value for

The student concludes that angle Y is directly proportional to angle X.

Explain what the student must do to test this conclusion in more detail.

The speed of light is 3.0 × 10⁸m/s.

The wavelength of yellow light is 5.8 × 10⁻⁷m.

Calculate the frequency of yellow light.

State the unit.

Use the equation

frequency =_........ unit_........

Give one colour of light that has a longer wavelength than yellow light.

Give one colour of light that has a higher frequency than yellow light.

Figure 10 shows a Geiger‑Müller (GM) tube used for measuring radioactivity.

Describe how a teacher should use a Geiger‑Müller (GM) tube to compare the count‑rates from two different radioactive rocks.

A hospital uses a radioactive isotope with a half‑life of 6 hours.

A technician measures a count rate of 80 counts per minute (cpm) from this isotope.

Complete the graph on Figure 11, as accurately as possible, to show how the count‑rate from this isotope will change from the time of the first measurement.

The first point is already drawn in Figure 11.

*(c) A radioactive rock is placed near to the front of a Geiger‑Müller (GM) tube. A radioactivity count‑rate is first made in air.

The count‑rate is measured again with each of three different absorbers between the rock and the GM tube.

Figure 12 shows the count‑rates measured.

A scientist has an idea that the rock emits three different types of radiation.

Explain how the data in this table supports the scientist’s idea.