Studied by 27 people
What is the word equation for speed?
Speed=distance/time
What is another word for speed?
Velocity
What is the unit for speed?
m/s
What is the unit for distance?
Metres
What is the unit for time?
Seconds
What is the symbol equation for speed?
v=s/t
What does the red line mean?
Steady speed
What does the blue line mean?
Stationary
What does the green line mean?
Faster - steady speed
What does the purple line mean?
Returning to start
What is the word equation for acceleration?
Acceleration=change in velocity/time taken
What is the symbol equation for acceleration?
a=(v-u)/t
What does A mean?
Acceleration
What does B mean?
Stationary
What does C mean?
Acceleration
What does D mean?
Decelleration
What is the unit for acceleration?
m/s2
How do you work out the distance traveled from a velocity-time graph?
Area under the velocity time graph
What is displacement?
Distance with direction
What is the equation for weight?
Weight = mass x gfs
What are the variables for the toy car experiment?
Independent - Ramp steepness
Dependent - Speed
Control - Distance, weight of car, material of ramp
What does this line mean?
Increasing acceleration
What does this line mean?
Constant velocity
What does this line mean?
Positive constant acceleration
What does this line mean?
Decreasing acceleration
What is the equation for force?
force=mass x area
What is force?
Push or a pull that acts on an object
What is force measured in?
Newtons
What can a force cause an object to do?
Change shape
Change its motion
Change its state of rest
Give an example of contact forces:
Friction/air resistance (drag)
Upthrust
Tension
Give an example of non-contact forces:
Weight
Magnetic
What is meant by mass?
The amount of matter in a substance/object
What are the variables for Hooke’s Law practical?
Independent - How many weights
Dependent - Spring extension
Control - Original spring length, material of spring
What makes stopping hard? (braking time/distance)
Tyres
Brakes
The road conditions
Steepness
Wind
What makes stopping hard? (braking time, increases thinking distance+braking distance)
Speed
What makes stopping hard? (thinking time/distance)
Alcohol
Drugs
Tiredness
Age
Distractions
Note 
Flashcard (107)