Additional: Acceleration And Velocity
10 Questions
| Total Attempts: 589
This is a quiz about the basic concepts about acceleration.
Questions and Answers
- 1.The units of acceleration are:-
- A.
Metres
- B.
Metres per second
- C.
Metres per second squared
- D.
Joules
- E.
Newtons
- 2.A cyclist accelerates from rest to 12m/s in 4s. His acceleration is:-
- A.
48m/s2
- B.
3m/s2
- C.
0.33m/s2
- D.
1.33m/s2
- E.
0.75m/s2
- 3.A car accelerates at 6m/s2 for 4s. If it starts at rest its final speed is:-
- A.
24m/s
- B.
1.5m/s
- C.
0.67m/s
- D.
9m/s
- E.
156m/s
- 4.An aircraft on the runway accelerates at 8m/s2 from rest until it reaches its take-off speed of 60m/s. How long does it take to reach this speed?
- A.
68s
- B.
1.1s
- C.
480s
- D.
7.5s
- E.
48s
- 5.A motor cyclist does an emergency stop when he is travelling at 36m/s. If the motorcycle stops in 3s what is his deceleration?
- A.
12m/s
- B.
108m/s
- C.
0.08m/s2
- D.
39m/s2
- E.
12m/s2
- 6.A parachutist opens her parachute at an altitude of 1000m when she is travelling at 48m/s. The parachute causes her to decelerate at 4m/s2 for 8s. At what speed does she continue towards the ground?
- A.
32m/s
- B.
24m/s
- C.
12m/s
- D.
6m/s
- E.
1.5m/s
- 7.To overtake a lorry while travelling at 15m/s a school minibus driver accelerates at 1.5m/s2 for 6s. What is the maximum speed the minibus achieves while overtaking?
- A.
22.5m/s
- B.
90m/s
- C.
81m/s
- D.
24m/s
- E.
32.5m/s
- 8.A runner sprints for the line at the end of the 1500m. He is already running at 7.5m/s and he has worked out that he must be travelling at 9.3m/s in less than 9s in order to win the race. What is the smallest acceleration that will allow him to do this?
- A.
0.2m/s2
- B.
1.1m/s2
- C.
1.87m/s2
- D.
1.8m/s2
- E.
45m/s2
- 9.The key difference between velocity and speed is:-
- A.
Speed only applies to cars
- B.
Speed only applies when object move slowly.
- C.
Velocity is when the speed changes.
- D.
Velocity only applies to science experiments
- E.
Velocity is used when the direction matters.
- 10.A car travelling at a constant speed around a roundabout is accelerating because:-
- A.
The car is slowing down
- B.
The car is speeding up
- C.
The car is not changing speed
- D.
The car is changing direction
- E.
The car is decelerating
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