Motion

Question 1

Derive the two main SUVAT equations

Answer 1

Velocity time graph

Question 2

Deduce all 5 SUVAT equations

Answer 2

Question 3

How would you resolve a vector into two components?

Answer 3

Horizontal = “hypotenuse “ cos (θ)
Vertical = “hypotenuse “ sin (θ)

Question 4

Resolving Vector Questions

Answer 4

Question 5

Box slope question

Answer 5

Question 6

What is the equation for average speed?

Answer 6

Question 7

Describe distance

Answer 7

A magnitude of the vector displacement
Can be observed and measured

Question 8

Describe Speed

Answer 8

A magnitude of velocity which can only be calculated
Every speed calculation = average speed calculation

Smaller the change in time, more accurately the average speed equates to instantaneous speed

(Instantaneous = tangent)

Question 9

Describe velocity

Answer 9

The rate of change of displacement
Measured by an accelerometer

Question 10

What is the area under an acceleration time graph?

Answer 10

Velocity

Question 11

What is the equation for Newton’s second law?

Answer 11

Question 12

What is the sign/notation for gradient?

Answer 12

Question 13

What is the difference between and Non Uniform and Uniform acceleration?

Answer 13

Uniform : The speed changes at a constant rate, travelling in a straight line
Non Uniform : speed changes at varying rate OR direction changes (can only be found using gradient of graph)

Question 14

Draw the acceleration time graph for a ball thrown in the air

Answer 14

Question 15

Draw the velocity time graph for a ball throw in the air

Answer 15

Question 16

Draw the displacement time graph for a ball thrown in the air

Answer 16

Question 17

Describe the displacement time graph

Question 18

What is the difference between the instantaneous velocity and average velocity measurements of a graph?

Answer 18

Question 19

Answer 19

Draw a velocity time graph
450/s

Question 20

write all 4 suvat equations

Answer 20

Question 21

when can the suvat equations be used?

Answer 21

when acceleration is constant (9.81)

assumption: air resistance is neglible

Question 22

what is the equation for stopping distance?

Answer 22

stopping distance= thinking distance + braking distance

Question 23

what factors affect the thinking distance and braking distance?

Answer 23

thinking distance:
* drinking/drugs
* tiredness
* distractions
* speed

braking distance:
* faulty brakes
* worn out tires
* speed

Question 24

how is thinking distance calculated, and describe the relationship between distance and time

Answer 24

Question 25

how is the braking distance calculated and what is the relationship between initial speed (u) and distance?

Answer 25

Question 26

Describe the practical to find acceleration

Answer 26

Question 27

What are some precautions that are taken for the practical?

Answer 27

* preventing risk of electrocution : use a low current * to minimise risk to the surface use something to help the object land * clamp the stand to the desk to prevent falling

Question 28

Question:

Answer 28

Question 29

what happens when a ball is thrown vertically upwards from earth?

Answer 29

* acceleration is constant throughout * the distance travlled upwards= the distance travlled down wards * the intial speed as ball leaves hand=final speed as thrower recieves * time taken to top of tragectory = time takento thrower catching the ball

Question 30

Question: What is the range of the cannon

Question 31

What is the total displacement of the arrow?

Answer 31

A: * the horizontal velocity stays the same * in the vertical velocity, at the maximum displacment- the veloicty is 0 * make sure you label the positive and negative direction of veocity as verically the direction changes * the acceleration is always -9.81

Question 32

Answer 32

Question 33

If A has a greater velocity than B

Answer 33

They both reach the ground at the same time

Question 34

What two factors affect an object’s acceleration?

Answer 34

The force and the mass of an object.

Question 35

Answer 35

Question 36

Answer 36

Question 37

Answer 37

Question 38

Answer 38

Question 39

Answer 39

Question 40

Question 41

Answer 41

B-0.4

Question 42

Answer 42

Question 43

Answer 43

Question 44

define thinking distance

Answer 44

the distance travelled between the driver seeing the damage and the brakes being applied

Question 45

Answer 45

Question 46

Answer 46

Question 47

Answer 47

Answer 48

Question 49

What is the distance time graph for a ball being thrown up and falling back down?

Answer 49

Question 50

Question 51

Answer 51

Question 52

Explain the kinetic energy and velocity of the projectile at maximum height

Answer 52

Question 53

what is freefall?

Answer 53

when a body falls through a medium without any drag producing devices (parachutes) * a= g | only has it's own weight acting