P2 - Forces

Question 1

average speed = ?

Answer 1

average speed = total distance/total time

Question 2

acceleration = ?

Answer 2

acceleration = change in velocity/time

Question 3

acceleration = ?

Answer 3

acceleration = (final velocity) - (initial velocity)/time

Question 4

speed = ?

Answer 4

speed = change in distance/time

Question 5

velocity = ?

Answer 5

velocity = change in displacement/time

Question 6

(final velocity²) - (initial velocity²) = ?

Answer 6

(final velocity²) - (initial velocity²) = 2 x acceleration x distance

Question 7

kinetic energy = ?

Answer 7

kinetic energy = 0.5 x mass x speed

Question 8

force = ?

Answer 8

force = mass x acceleration

Question 9

acceleration = ? (linking to force)

Answer 9

acceleration = force/mass

Question 10

momentum = ?

Answer 10

momentum = mass x velocity

Question 11

power = ?

Answer 11

power = work done/time

Question 12

spring constant = ?

Answer 12

spring constant = force/extension

Question 13

gravity force (weight) = ?

Answer 13

gravity force (weight) = mass x gravitational field strength

Question 14

resultant force =

Answer 14

resultant force = mass x acceleration due to gravity

Question 15

gravitational potential energy = ?

Answer 15

gravitational potential energy = mass x height x gravitational field strength

Question 16

clockwise moment = ?

Answer 16

clockwise moment = force x distance

Question 16

anticlockwise moment = ? = ?

Answer 16

anticlockwise moment = force x distance = clockwise moment