Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit
Forces and Motion
367 practice questions
Topics covered
Practice questions
171–180 of 367
Question 171
2 marks · Normal
Answer and see the solution →State the meaning of each term in the formula v^2 = u^2 + 2as.
Question 172
3 marks · Normal
Answer and see the solution →A train increases its speed from 20 m/s to 50 m/s under uniform acceleration of 6 m/s². Calculate the distance over which this acceleration occurs.
Question 173
4 marks · Normal
Answer and see the solution →A student investigates the motion of a remote-controlled car along a straight runway. The car accelerates uniformly from rest. The student records the following data:
Car motion data Distance travelled (s) / m Final speed (v) / m/s 0.0 0.0 1.5 3.9 4.0 6.7 7.0 9.2 (a)[3 marks]Using the data for s = 7.0 m, calculate the car’s acceleration.
(b)[1 mark]State the initial speed of the car for this experiment.
Question 174
3 marks · Normal
Answer and see the solution →Explain, using an example, when you would use the equation v^2 = u^2 + 2as instead of the equation v = u + at to solve a problem about an object's motion.
Question 175
3 marks · Easy
Answer and see the solution →A runner travels at a steady speed of 8 m/s for 5 seconds.
(a)[2 marks]Calculate the distance travelled by the runner in this time.
(b)[1 mark]Is the distance calculated a vector or scalar quantity? Explain your answer.
Question 176
4 marks · Easy
Answer and see the solution →An object starts from rest and accelerates uniformly at 2 m/s² for 6 s.
(a)[2 marks]Calculate the final velocity of the object.
(b)[2 marks]Calculate the distance travelled by the object during this time using the area under the velocity–time graph.
Question 177
6 marks · Normal
Answer and see the solution →A cyclist travels along a straight road. The distance–time graph for her first 10 seconds is shown below.
(a)Distance-time graph for a cyclist. (i)[1 mark]Describe how the cyclist’s speed changes during the time shown.
(ii)[1 mark]Calculate the average speed of the cyclist during the first 8 seconds.
(b)[2 marks]Using your answer to part a(ii), explain whether the cyclist’s average speed is the same as her speed at 10 s.
(c)[2 marks]State whether the graph shows negative, zero, or positive acceleration during the interval 8 s to 10 s. Explain your answer.
Question 178
6 marks · Normal
Answer and see the solution →A student uses a toy car to investigate acceleration down a track. The results are shown in the table.
Measured velocity of the toy car at different times. Time (s) Velocity (m/s) 0.0 0.0 1.0 2.0 2.0 4.0 3.0 6.0 4.0 8.0 (a)[2 marks]Plot a velocity–time graph for the results above. Label each axis.
(b)[2 marks]Determine the gradient of the velocity–time graph. State what this gradient represents.
(c)[2 marks]Calculate the distance travelled by the car in the first 4 seconds using your graph or the area method.
Question 179
5 marks · Normal
Answer and see the solution →A car starts at rest, accelerates uniformly to a speed of 20 m/s in 4 seconds, then travels at constant speed for 6 seconds.
(a)[2 marks]Draw a labelled velocity–time graph for the motion of the car from 0 to 10 seconds.
(b)[1 mark]Calculate the acceleration during the first 4 seconds.
(c)[2 marks]Calculate the total distance travelled in the 10 seconds.
Question 180
6 marks · Normal
Answer and see the solution →The table shows the motion of a ball thrown vertically upwards. Air resistance is negligible.
Time (s) Velocity (m/s) 0.0 24.0 1.0 14.2 2.0 4.4 3.0 -5.4 4.0 -15.2 (a)[2 marks]Plot the velocity–time graph for the ball using the data given. Label both axes.
(b)[2 marks]Determine the acceleration acting on the ball.
(c)[2 marks]Calculate the distance the ball travels in the first 2 seconds.