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Forces (Motion), Balanced forces is when acting forces on an object…
Forces (Motion)
Motion Graphs
Distance-time graph
Speed-time graph
Calculating distance in a speed-time graph
Area under the curve in
V-t graph is equal to distance
Newtons Law Of Motion
First Law
(balanced forces)
Second Law
(unbalanced forces)
Free fall
When object moves against gravity
In the
absence
of air resistance (
vacuum
)
Objects fall at the same rate.
No matter how heavy the objects are.
In the
presence
of air resistance
The objects with more mass and least volume will hit the ground first.
Constant acceleration
Decreasing acceleration
Terminal velocity
Decreasing acceleration (parachute opened)
Balanced forces is when acting
forces on an object cancel the effect of eachother and resultant force is zero.
If an object is at rest, will stay at rest
If an object is moving, it will keep on moving
with constant speed.
Unbalanced forces when resultant force is acting on an object.
object can accelerate in the direction of resultant force.
Object is moving with constant speed
Object is stationary
Speed is increasing (acceleration)
Speed is decreasing (deceleration)
Speed is constant, acceleration is zero
Acceleration is constant
Acceleration is increasing
Acceleration is decreasing
The distance covered by the object is shaded in red.
The formula to calculate the distance in this graph is 1/2 (base)(height)
The formula here is (base)(height)
