P3 - Speed

Question 1

What is speed?

Answer 1

Speed is a measure of how fast an object is going.

Question 2

What is the formula for average speed?

Answer 2

Average speed = distance/time

Question 3

How does a speed camera work?

Answer 3

1) as a speeding car passes a camera a photograph is taken
2) a second photograph is taken 0.5 seconds later
3) white lines on the ground shows how far the car travels in 0.5 seconds

Question 4

What is instantaneous speed?

Answer 4

The speed of a moving object at a particular moment.

Question 5

What does U stand for?

Answer 5

U stands for starting speed.

Question 6

What does V stand for?

Answer 6

V stands for the ending speed.

Question 7

How do you change from km/h to m/s?

Answer 7

Times by 1000 and then divide by 3600.