Measuring speed: practical | Starter Quiz | Oak National Academy

Quiz
•
Science
•
7th Grade
•
Hard
Standards-aligned
Oak National Academy
FREE Resource
6 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Two balls roll the same distance; ball A takes 4 s and ball B takes 3 s. Which statements are correct?
Ball A was moving faster than ball B.
Ball A was moving slower than ball B.
Ball A has a greater average speed than ball B.
Ball A has a lower average speed than ball B.
Answer explanation
Ball B took less time to cover the distance, that means it is travelling at a higher speed than ball A. Ball B is moving faster than ball A.
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of these are units for speed?
m
m/s
km/h
N/s
s/m
Answer explanation
The correct units for speed are m/s (metres per second) and km/h (kilometres per hour).
Tags
NGSS.MS-PS3-1
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which pieces of information are needed to find the average speed of a toy car rolling across a desk?
The mass of the toy car.
The time it takes the toy car to travel.
The height of the desk.
The distance the toy travels.
The size of the forces on the car.
Answer explanation
As average speed is given by speed = distance ÷ time, only the distance and time are needed to find the speed.
Tags
NGSS.MS-PS3-1
4.
REORDER QUESTION
1 min • 1 pt
Five swimmers complete a 200 m race. Their finish times are shown. Starting with the fastest, put the racers in order of average speed.
swimmer E: 600 s
swimmer D: 610 s
swimmer C: 606 s
swimmer B: 612 s
swimmer A: 620 s
Answer explanation
The shorter the time, the greater the average speed. The order is E, C , D, B and finally A.
Tags
NGSS.MS-PS3-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A bus is travelling at 2 m/s and moves for a time of 30 s. Which of these shows how to calculate the distance the bus has travelled?
distance = 2 m/s + 30 s
distance = 2 m/s × 30 s
distance = 2 m/s ÷ 30 s
distance = 30 s ÷ 2 m/s
distance = 30 s - 2 m/s
Answer explanation
The distance travelled is given by: distance = speed × time, so distance = 2 m/s × 30 s.
Tags
NGSS.MS-PS3-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A skater in a race travels a distance of 800 m in a time of 125 s. Calculate their speed.
0.16 m/s
1.6 m/s
6.4 m/s
675 m/s
925 m/s
Answer explanation
The solution is: speed = distance ÷ time, speed = 800 m ÷ 125 s = 6.4 m/s
Tags
NGSS.MS-PS3-1
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