Forces Flashcards
(41 cards)
The steeper the line -
The faster your going
What is the formula for average speed?
Average speed = distance
Time
/ = ? Distance graph
- = ?
) = ?
( = ?
/ = Constant speed - = Stationary ) = Accelerating ( = Decelerating
The velocity of a body is its speed -
In a given direction
What is the Acceleration formula?
Acceleration = Velocity change
Time taken
/ = ? Velocity graph - = ? \ = ? ) = ?
When is the car stationary on a distance time graph?
/ = Accelerating - = Steady speed \ = Deceleration ) = increasing acceleration
At 0
A force acting on an object can change its: (3)
- Speed
- Direction
- Shape
The length of the arrow shows how _______ the force is.
The length of the arrow shows how strong the force is.
Forces are measured in ________.
Forces are measured in newtons.
A vector quantity has ______ + __________.
A vector quantity has size + direction
A force is a ______ or _____ acting on an object.
A force is a push or pull acting on an object.
( )
/_______ ( ) ____ \
\ ( ) /
Left
( )
/_______ ( ) ____ \
\ ( ) /
______
/ \
/__|________| _______\
\ O O /
Right ______
/ \
/__|________| _______\
\ O O /
The force of attraction between any 2 body mass
Gravity
The upward force in water, equal to the weight of the displaced water.
Up thrust
The force that opposes the motion of 2 surfaces In contact with each other.
Friction
Distance travelled
Distance travelled
_______________ = _______________
Distance travelled = Area under the graph
5 | /
|/____
4
|
5 | / 5x4= 20 / 2 = 10
|/___.
4
Resultant force
Resultant force
Velocity time graph is the ______ under the graph.
Velocity time graph is the area under the graph.
If a force acts on something you will see a change in ________, ________ or _________.
If a force acts on something you will see a change in speed, shape or direction.
______
-> |______| ->
How do you work it out?
You find a resultant force.
- or +
If there is not a __________ force there is ___ charge.
If there is not a resultant force there is no charge.
