On a distance-time graph, what does the gradient show? Therefore what do flat sections show?
On a distance-time graph, what do curves represent? Therefore what does a steepening curve show? And what will a leveling off curve show?
What is the difference between speed and velocity?
How do you calculate speed from a distance-time graph?
If a pea traveled at 14 m/s in 0.4 seconds, what is its acceleration?
How do you find speed, distance and acceleration from a velocity-time graph?
Explain the difference between mass and weight. What units are they measured in?
If an object has a resultant of zero, can it be moving? Can it be accelerating?
Define terminal velocity
What are the two different parts of the overall stopping distance of a car?
The formula for work done is force x distance. If a branch is dragged 12m with a pulling force of 535 N, how much work is done?
A 4 kg object is taken 30m up a hill. If g = 10 N/km, how much gravitational potential energy is does it have at the top of the hill?
(GPE = mass x g x height)
What is the equation that relates the force on a spring to its extension?
What happens to an elastic object when it is stretched beyond its limit of proportionality?
The formula for momentum is mass x velocity.
If the total momentum of a system before a collision is zero, what is the total momentum afterwards?
What is the advantage of using regenerative breaking systems?
a) Seat belts
b) Crumple zones
c) Air bags
useful in a car crash?
How does adding a roof box change the top speed of a car?
What causes the build up of static electricity? When the static builds up, which particles move?
Fill in the blank.
The ________ the resistance across a component, the smaller the current that flows.
How does the resistance of a component change with its temperature (in terms of ions and electrons)?
Give 2 applications of LED's
How does the resistance of an LDR change with the intensity of light?