What does the gradient of this distance time graph give you?
Speed
What does the gradient of this velocity time graph give you?
acceleration
Which of the two cars (red or Blue) was travelling the fastest?
Blue
If this runner was to speed up, what would happen to the gradient of this distance time graph?
The gradient would increase
What does a curved distance time graph mean the object was doing?
accelerating
Why does the distance always increase, even if you turn around and come back?
Distance is scalar - so only has size
What does a horizontal line on a distance-time graph mean?
The object is stationary
What does a horizontal line on a velocity-time graph mean?
The object is moving with a constant velocity.
What does the area under a velocity-time graph give you?
The displacement
A car travels at a constant speed around a corner, is it accelerating?
Yes - acc'n is a changing velocity, and velocity includes direction.
Grandad Timmy is slowly changing speed from 0.2 to 0.4m/s. Is he accelerating?
Yes - any change in velocity is acceleration.
Timmy has just jumped out of a plane. As they accelerate, what happens to the air resistance?
Air resistance increases with speed
Timmy is sky diving, his weight and air resistance are balanced. Describe his motion...
Moving with a constant velocity (terminal velocity)
What is the name for the maximum velocity a falling object can reach?
terminal velocity
What factors affect the size of the air resistance an object feels?
Speed of the object, shape of the object, density of the fluid.
Which of Newton's laws is this: If the resultant force acting on an object is zero and the object is stationary, it will remain stationary.
Newton's 1st Law
