P10

Question 1

Resultant force equation

Answer 1

Resultant force(F) = mass(m) x acceleration (a)
F = ma

Question 2

Inertia mass equation

Answer 2

Force(F) / Acceleration(a)
F/a

Question 3

Mass weight equation

Answer 3

Weight(w) = mass(m) x gravitational field strength(g)
W = mg

Question 4

Momentum equation

Answer 4

Momentum(p) = mass(m) x velocity (v)
p = mv

Question 5

Hooke’s law equation

Answer 5

Force(F) = spring constant(k) x extension(e)
F = ke

Question 6

Newton second law of motion

Answer 6

Acceleration of object is
- proportional to resultant force
- inversely proportional to mass

Question 7

Inertia

Answer 7

Tendency to stay at rest or in motion

Question 8

Weight

Answer 8

Force act on object due to gravity

Question 9

Mass

Answer 9

Quantity of matter in object

Question 10

Stopping distance

Answer 10

Shortest time for vehicle to stop

Question 11

Thinking distance

Answer 11

Distance travel by car when driver react

Question 12

Braking distance

Answer 12

Distance travel when brake applied

Question 13

Conservation of momentum

Answer 13

Total momentum is equal before and after event
- Apply when system is closed

Question 14

Elastic object

Answer 14

Object go back to original shape when force applied is removed

Question 15

Spring constant

Answer 15

Force per unit needed to extend elastic object