Motions, forces, momentum etc.etc. Flashcards
(16 cards)
What is the distance is straight lines called?
Displacement.
What is velocity?
The speed and direction of an object.
On a distance time graph what is the gradient equal to?
The speed.
What do horizontal lines on a distance time graph represent?
Stationary/not moving.
The steeper the gradient on a distance time graph the _________ the speed.
Quicker/higher.
What is acceleration?
Change in velocity.
What are the units for acceleration?
㎨ (metres per second squared)
What do horizontal lines above the x axis represent on velocity time graphs?
Constant velocity.
How is a stationary object shown on a velocity time graph?
A straight like on y=0.
How do you find the distance on a velocity time graph?
The area underneath.
What is a force?
A vector quantity that can make objects change speed, shape or direction.
True or False:
If the resultant for is zero it means the object is stationary.
False, it also means that the object is moving at a constant velocity.
What is force measured in?
Newtons.
What is mass?
The quantity of matter there is.
What is weight?
The measure of quantity there is with forces acting on it, for example gravity.
True or false:
On the surface of the Earth an object with a mass of 1 kg has a weight of about 10 N.
True.
