Topic 5: Force, Acceleration & Work

Question 1

Objects at rest do not move because

Answer 1

all forces acting on them is balanced

Question 2

force

Answer 2

push or pull of an object (newtons

Question 3

net force

Answer 3

sum of all forces acting on object

Question 4

what must occur for a vehicle to slow down

Answer 4

when force of air resistance, friction, and brakes overcomes force making vehicle go forward
- net force will be negative, causes it to stop

Question 5

newtons 1st law of motion

Answer 5

without net force, object in motion will maintain velocity, object at rest will be at rest

Question 6

work

Answer 6

when force is applied on object for it to move (joules), force applied must be greater than other forces acting on object