Edexcel GCSE Combined Science Paper 5: Physics 1 Foundation June 2025 question paper 1SC0/1PF

Draw one straight line from each electromagnetic radiation to its correct description.

Different colours of light have different frequencies.

Which of these colours has the highest frequency?

Figure 1 is a diagram of a glass block being used to investigate the refraction of light.

(Source: © ajizai/docstoc.com)

Figure 1

The angle of incidence was varied and the angle of refraction was measured each time.

Figure 2 shows the results in a table.

Figure 3 shows a graph of these results.

The two shaded rows in Figure 2 are not plotted on the graph in Figure 3.

Plot these missing results on the graph in Figure 3.

Draw a curve of best fit through the points on the graph in Figure 3.

Using figure 3, describe the relationship between the angle of refraction and the angle of incidence.

Figure 4 shows a velocity / time graph for a car moving on a test track.

Use this graph to describe the velocity of the car in stages TS, SR and RQ.

TS

SR

RQ

State how the motion of the car is different in RQ compared with QP.

Calculate the acceleration of the car in Figure 4 in the first 5 s.

Use the equation

acceleration =_........ m / s²

Calculate the distance travelled by the car in Figure 4 from 5 s to 15 s.

Figure 5 shows a diagram of a helium atom.

Complete the table for particles G and H, as shown in Figure 5.

An atom of beryllium has the symbol

Be 9 4

The beryllium atom has 4 protons.

Determine the number of neutrons in this atom.

Determine the number of electrons in this atom.

Which of these is the unit for the activity of a radioactive isotope?

The isotope nitrogen-13 (N-13) has a half-life of 10 minutes.

A sample of N-13 has an initial mass of 120 g.

Calculate the mass of N-13 that remains after 30 minutes.

mass remaining =_........

Figure 6 shows apparatus set up to investigate the speed of a falling object.

The object is dropped from rest at the position shown. The object falls through the light gate.

The speed of the object, after it has fallen through a height, h, is measured by the light gate.

Label Figure 6 to show the height, h. Your label should look like this

The speed is measured at least four times for each drop height.

Give one reason for repeating the measurements.

The metre rule shown in Figure 6 is used to measure the height, h.

Suggest two ways to make the measurement of h as accurate as possible.

As the object in Figure 6 falls, energy is transferred.

These energy transfers are represented in Figure 7.

Complete the labels of the energy stores involved.

Figure 8 shows wind power generation from the year 2000 onwards.

Estimate the percentage change in wind power generation from 2005 to 2020.

percentage change =_........

Which row of the table shows the correct units of weight and of mass?

State the name of a piece of equipment that can be used to measure mass.

Figure 9 shows the two forces acting on a beach ball as it falls through the air.

The resultant of these two forces is 0.92 N downwards.

The mass of the beach ball is 0.25 kg.

Calculate the acceleration of the beach ball as it falls.

Use the equation

acceleration =_........ m / s²

Calculate the size of the air resistance force on the beach ball.

Some students are investigating forces.

They use a newton meter to keep a trolley stationary on a sloping runway, as shown in Figure 10.

They measure the force needed to keep the trolley stationary on the sloping runway.

They do this at four different places on the runway.

When the height, h, of the runway is 0.60 m, their four readings for force are

2.1 N 2.7 N 2.5 N 2.2 N

Calculate the mean value of these forces.

The students then measure values of the force, F, for several different values of h, the height of the runway.

Figure 11 is a graph of F against h.

Use the graph in Figure 11 to determine the value of F when h = 0.80 m.

Determine the gradient of the graph in Figure 11.

gradient =_........ N / m

Figure 12 is a diagram of part of a water wave.

Use data from Figure 12 to determine the amplitude of the wave.

Use data from Figure 12 to determine the wavelength of the wave.

wavelength =_........

The water wave shown in Figure 12 is generated in a large tank.

A student observes the wave.

Describe how the student could determine the wave speed of the wave.

When an earthquake happens, waves are transmitted through the Earth. Figure 13 is a diagram of a part of the Earth’s crust.

Earth’s surface

An earthquake happens at point X, 20 km below the Earth’s surface.

An earthquake wave from X is detected at point L.

This earthquake wave is a transverse wave.

State one other example of a transverse wave.

A point in the crust is labelled R in Figure 13. There is a rock at point R.

Describe the effect that this earthquake wave has on the rock at R as the wave passes through the rock.

You may add to Figure 13 to help your answer.

*(c) A scientist investigates a sample of an unknown radioactive material.

The scientist finds that the sample does not emit beta radiation.

The scientist sets up the experiment shown in Figure 14 and uses different absorbers to investigate alpha and gamma radiation.

The results are shown in Figure 15.

The count rates are rounded to two significant figures.

The background radiation was 18 counts per minute (cpm).

Discuss whether the sample emits alpha or gamma radiation or both.

Your answer should refer to

• the data shown in Figure 15

• how the data gives evidence for particular radiations.