Kinematics

Question 1

Speed vs velocity and the formula for average speed

Answer 1

Speed is the distance travelled per unit time

Velocity is the displacement travelled per unit time

Average velocity is total displacement over total time

Question 2

Acceleration

Answer 2

Rate of change of velocity

Question 3

What information can you get from a distant time graph

Answer 3

YOU ONLY CAN GET SPEED WITH THE GRADIENT

So find the gradient at any point in this graph to get the speed at that point in time

Question 4

What information can you get from SPEED TIME GRAPH

Answer 4

To find ACCELERATION use GRADIENT FOR THIS GRAPH

To find DISTANCE use the AREA UNDER GRAPH

Question 5

Shapes of displacement time graph

Answer 5

Question 6

Shapes of velocity time graph

Answer 6

Question 7

Acceleration due to free fall

Answer 7

Near the surface of the earth the acceleration OF FREE FALL FOR AN OBJECT IS CONSTANT AND IS APPROXIMATELY 10!!!!

TROY 10 pls remember 10

Question 8

Effects of air resistance.

Answer 8

In real life always have air resistance the only time where no air resistance is in vacuum( not air, liquid or solid like in outer space) or in your questions

AIR RESISTANCE IS A FORCE SO LIKE A HAND PUSHING it will increase till its equal to the weight of the object so the guy will fall at constant speed

This constant speed is TERMINAL VELOCITY