In this worksheet, we will practice finding the speed as a rate of change of distance that objects move during a time interval.

**Q2: **

What distance does an object with a speed of 15 m/s travel in a time of 4 seconds?

- A 11 m
- B 19 m
- C 3.75 m
- D 60 m
- E 240 m

**Q3: **

The sides of a baseball diamond are 27 m in length. What is the average speed of a baseball player who runs from first base to third base in a time of 7.2 s?

**Q4: **

How much time is taken for an object with a speed of 80 m/s to travel a distance of 300 m?

**Q5: **

An aeroplane travels at a speed of 800 km/h for 3.5 hours. How many kilometres does the aeroplane travel?

- A 804 km
- B km
- C 796 km
- D km
- E km

**Q8: **

What is the speed of an object that travels a distance of 300 metres in a time of 25 seconds?

- A 275 m/s
- B m/s
- C 325 m/s
- D 12 m/s
- E 20 m/s

**Q9: **

The distance between position and position shown in the diagram is 2,500 m. What is the average speed of a car that travels from to in 200 seconds?

**Q10: **

A curved racetrack has a length of 440 m. How many times does an athlete running at 8.8 m/s cross the same point on the race track if they run for 250 seconds?

**Q11: **

A cat walks in a garden. The cat walks north a distance of 3 m in a time of 12 s. The cat then stops for 18 s before walking another 6 m north in a time of 15 s. What is the cat’s average speed?

**Q12: **

A person walking strolls all the way around a pond, a distance of 12 m. The person then turns around and walks 6 m back around the pond. The person’s average speed is 0.9 m/s. How much time does their walking take?

**Q13: **

Two children, Farida and Adam, go running through some fields. They both enter a field that is 36 m long and 77 m wide, entering at the field’s bottom left-hand corner at the same time as each other. Farida runs along the edges of the field at an average speed of 5.65 m/s, first to the top left-hand corner and then to the top right-hand corner. Adam runs straight across the field to the top right-hand corner, but the long grass in the field makes him run at an average speed of only 2.5 m/s. What is the difference in the time taken for Farida and Adam to arrive at the top right-hand corner of the field?

**Q14: **

Two cars, A and B, are approaching a perpendicular junction. Car A is moving at 35 m/s north and car B is moving at 25 m/s east. Car A arrives at the junction 5 seconds before car B arrives there. Car B was initially 375 m from the junction. How far from the junction was car A initially?

**Q15: **

A dog runs north at a speed of 4 m/s for 25 seconds and then runs west at a speed of 6 m/s for 10 seconds. What is the total distance the dog travels?

- A 64 m
- B 31 m
- C 35 m
- D 160 m
- E 106 m

**Q16: **

The speed-time graph shows the change of speed of a person walking during the time interval from to .

What is the person’s speed at ?

What is the person’s speed at ?

What distance does the person walk between and ?

What distance does the person walk between and ?

What distance does the person walk between and ?

What distance does the person walk between and ?

**Q18: **

A car is driven along a road at a constant speed. The distances that the car has moved from its starting position at different times are shown in the diagram. Find the distance to the nearest meter.

**Q19: **

The distance–time graph shows the change in the distance moved by a person walking in the time interval from to .

What speed does the person move at between and ?

What speed does the person move at between and ?

What speed does the person move at between and ?

What average speed does the person move at between and ?

What average speed does the person move at between and ?

What average speed does the person move at between and ?

How far has the person moved at ?

How far has the person moved at ?