(GCSE Edexcel (9-1) Exam Questions
And All Correct Answers.
What is a scalar quantity? - Answer One that has magnitude (size) only.
What is a vector quantity? - Answer One that has magnitude (size) and direction.
These are examples of scalar quantaties: - Answer Distance, speed, mass, energy.
These are examples of vector quantaties: - Answer Displacement, velocity, acceleration, force, weight,
momentum.
What is velocity? - Answer Speed in a given direction.
What is the equation for (average) speed? - Answer Distance travelled ÷ time taken
What are the units of speed? - Answer m/s
What is the equation for distance travelled? - Answer average speed x time taken
How do you find the speed from a distance time graph? - Answer Calculate the gradiant of the distance
time graph.
What are the units of acceleration? - Answer m/s/s or m/s squared
, How do you find the acceleration from a speed time graph? - Answer Calculate the gradiant of the
speed time graph.
How do you find the distance travelled from a speed time graph? - Answer Calculate the area under the
graph.
What does a horizontal line on a speed time graph show? - Answer Constant speed.
What does a horizontal line on a distance time graph show? - Answer No movement
What does a steep line on a speed time graph show? - Answer Fast acceleration.
What does a steep line on a distance time graph show? - Answer Fast speed.
What is a light gate? - Answer An electronic timer that measures the time taken for an IR beam to be
broken.
What is the advantage of a light gate? - Answer More accurate as does not involve human reaction
times.
What is typical walking speed? - Answer 1.5 m/s
What is a typical running speed? - Answer 5 m/s
What is a typical cycling speed? - Answer 6 m/s
What is a typical driving speed in built up areas? - Answer 10 m/s
What is a typical driving speed on motorways? - Answer 30 m/s