P9 motion

Question 1

How do you find displacement on a digram

Answer 1

The distance between the starting and where the object is displaced at the end

Question 2

What is the speed of sound in air

Answer 2

330 M/s

Question 3

Three factors that affect a persons walking running or cycling speed

Answer 3

Distance age fitness

Question 4

Does a satellite orbiting earth have a constant velocity

Answer 4

No- velocity is speed in a given direction and satalites are always changing directions so the velocity is constantly changing

Question 5

What is the formula that links distance travelled speed and tim

Answer 5

Displacement = velocity times time

Question 6

What is the typical speed of someone walking

Answer 6

1.5 meters/sec

Question 7

Typical speed of someone cyclin

Answer 7

6 meters/sec

Question 8

Typical speed of someone running

Answer 8

3 meters/sec

Question 9

How do you find speed on a straight line distance time graph

Answer 9

The Grenadian of the line

Question 10

How to find the speed on a curved distance time graph

Answer 10

Gradient of the tangent

Question 11

What is the shape of a deceleration ata fast rate on a graph

Answer 11

Curved

Question 12

What is the formula for acceleration

Answer 12

Change in velocity / time

Question 13

What is instantaneous speed

Answer 13

It is used when speed is not constant (acceleration deceleration)

Question 14

What is the acceleration when an object falls

Answer 14

9.8 M/s

Question 15

What happens to velocity when the air resistance and weight is equal

Answer 15

-It stays constant

Question 16

What is a datalogger

Answer 16

An electronic device which automatically monitors and records the environmental parameters( speed and distance)