Pearson Edexcel GCSE (9-1) · Combined Science (1SC0)

Key concepts of physics: Practice Questions

5 multiple-choice questions marked as you go, and 2 written questions with worked solutions. All on Key concepts of physics.

7 questions13 marksFree, no account

Question 1

1 mark

Which of the following is the correct multiplier for the SI prefix micro (\(\mu\))?

Question 2

1 mark

A car travels a distance of \(450\text{ metres}\) in \(30\text{ seconds}\). Calculate its average speed in \(\text{m/s}\).

Question 3

1 mark

An object is moving in a circular orbit at a constant speed. Which statement best describes the velocity and acceleration of the object?

Question 4

1 mark

Which of the following units is used for magnetic flux density?

Question 5

1 mark

A student is using the following equation to calculate the weight of an object:
\(W = m \times g\)
If an object has a mass of \(500\text{ g}\) and the gravitational field strength is \(10\text{ N/kg}\), what is the weight of the object?

Question 6

2 marks

State the SI unit for force.

Write your answer out first, then check it against the worked solution.

Question 7

6 marks

The speed of a train increases from \(10\text{ m/s}\) to \(30\text{ m/s}\) over a distance of \(400\text{ metres}\).
(a) Calculate the acceleration of the train, assuming it is uniform.
(b) The train has a mass of \(2.5 \times 10^5\text{ kg}\). Calculate the resultant force required to produce this acceleration.
(c) Calculate the change in kinetic energy of the train during this acceleration. Write your answer in standard form.

Write your answer out first, then check it against the worked solution.

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