Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Forces and Motion
367 practice questions
Topics covered
Practice questions
81–90 of 367
Question 81
4 marks · Hard
Answer and see the solution →The table below shows several situations or objects. For each, write the SI unit for the quantity shown, using the correct symbol. An example (row 1) is completed for you.
Physical Quantities and Their SI Units Situation / Object Quantity SI unit (name) SI unit (symbol) A car travels 25 metres in 5 seconds. distance metre m A weight-lifter applies a force to raise a barbell. force A moving hockey puck has momentum. momentum A lever turns about a pivot because of a turning force. moment (of a force) An object accelerates at a certain rate. acceleration Complete only the last four rows of the table.
Question 82
2 marks · Exam Level
Answer and see the solution →State the SI unit (name and symbol) for each of the following physical quantities: (i) Turning effect of a force (ii) Acceleration
Question 83
2 marks · Exam Level
Answer and see the solution →A student writes the following physical quantity and its unit: 'momentum: newton (N)'. Identify the mistake, and state the correct SI unit and symbol for momentum.
Question 84
2 marks · Exam Level
Answer and see the solution →A laboratory experiment measures a force of 6 newtons acting on a mass of 2 kilograms. State the SI unit (name and symbol) that should be used for expressing the ratio of force to mass, and write its value for this experiment.
Question 85
1 mark · Easy
Answer and see the solution →State the equation used to calculate average speed.
Question 86
1 mark · Easy
Answer and check →Which of these objects is moving at the greatest average speed during its journey?
Object Distance moved (m) Time taken (s) A 15 5 B 20 10 C 30 15 D 22 7 - A.A
- B.B
- C.C
- D.D
Question 87
2 marks · Easy
Answer and see the solution →A person walks 120 m in 80 seconds. Calculate the average speed of the person. State the correct unit.
Question 88
1 mark · Easy
Answer and see the solution →Which part of a distance–time graph shows that an object is stationary? Give your answer in one word.
Question 89
2 marks · Easy
Answer and see the solution →Explain why the slope of a distance–time graph represents speed.
Question 90
2 marks · Easy
Answer and see the solution →A snail travels at an average speed of 0.02 m/s. How far does it travel in 3 minutes? Give your answer in metres.