Flashcards
AQA P2 flashcards
Flashcards do conjunto (21)
- 1P2.1 Forces can change the shape of an object. True or false?True- they can change the shape and the motion.
- 2P2.1 What happens when two objects interact?The forces they exert on each other are equal and opposite.
- 3P2.1 Name the force that sums up all forces acting on an object.The resultant force.
- 4P2.1 If the resultant force on an object is 0, what will happen to it?It will remain stationary or stay at a constant speed (terminal velocity).
- 5P2.1 If the resultant force on an object is not 0, what will happen to it?It will accelerate in the direction of the resultant force.
- 6P2.1 What are the two equations for acceleration?a=f/m
OR
a=(v-u)/t - 7P2.1 What does the gradient of a distance-time graph represent?speed.
- 8P2.1 What does the gradient of a velocity-time graph represent?Acceleration.
- 9P2.1 As the speed of a vehicle increases, what will happen to the breaking force needed?It will be higher.
- 10P2.1 What is the stopping distance of a vehicle?The sum of the thinking distance and the braking distance.
- 11P2.1 Name two factors that can affect a driver's reaction time.-alcohol influence
-drug influence
-tiredness - 12P2.1 Name two factors that can affect a vehicle's breaking distance-adverse road
-poor weather conditions
-poor condition of the vehicle (worn tires, etc) - 13P2.1 The faster an object moves through a fluid, what happens to the frictional force acting on it?It will increase.
- 14P2.1 Describe fully the motion of an object falling through fluid.It will accelerate at first as gravity is the stronger force, but then it will reach a terminal velocity as the resultant force becomes zero.
- 15P2.1 What is the equation for the weight (in Newtons) of an object?W=mxg
- 16P2.1 What happens when a force is applied to an elastic object?It will stretch and store elastic potential energy.
- 17P2.1 Name the point where extension and force stop being directly proportional.The limit of proportionality.
- 18P2.2 What happens when a force causes an object to move through a distance?Work is done.
- 19P2.2 Which equation relates work done, force and distance?W=Fxd
- 20P2.2 What actually happens when work is done?Energy is transferred.
- 21—
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- FlashCards sobre AQA P2 flashcards, criado por taylorb11 em 30-10-2015.
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