Forces and Motion Part 2 (bits I don't know)

Question 1

typical speed value for walking

Answer 1

1.5 m/s

Question 2

typical speed value for running

Answer 2

3 m/s

Question 3

typical speed value for cycling

Answer 3

6 m/s

Question 4

on a distance time graph if an object is accelerating its speed at any time can be determined by:

Answer 4

drawing a tangent and measuring the gradient

Question 5

acceleration of something falling (not including air resistance)

Answer 5

9.8 m/s²

Question 6

the tendency of objects to continue in their state of rest or uniform motion is called

Answer 6

inertia

Question 7

definition of inertial mass

Answer 7

a measure of how difficult it is to change the velocity of an object

Question 8

inertial mass is defined by the

Answer 8

ratio of force over acceleration

Question 9

the symbol that indicates an approximate value/answer

Answer 9

~

Question 10

the stopping distance is the sum of the

Answer 10

thinking distance and braking distance

Question 11

thinking distance is

Answer 11

the distance the vehicle travels during the drivers reaction time

Question 12

braking distance is

Answer 12

the distance the vehicle travels under the braking force

Question 13

typical reaction times range from

Answer 13

0.2-0.9s

Question 14

when force is applied to the brakes of a vehicle what happens

Answer 14

work done by the friction force between the brakes and the wheel reduces the kinetic energy of the vehicle and the temperature of the brakes increases