Physics AQA PAPER 2 FINAL EXAM

?
  • Created by: IJM22
  • Created on: 07-06-19 12:06
Name a vector quantity?
Force
1 of 52
Name some vector quantities?
Force, velocity and displacement
2 of 52
What are scalar quantities?
Where they have magnitude but no direction
3 of 52
Name some scalar quantities?
Speed, distance, mass and temperature
4 of 52
How are vectors represented?
By arrows
5 of 52
What does the length of the arrow show?
The magnitude
6 of 52
What does the direction of the arrow show?
The direction of the quantity
7 of 52
What is a force?
A push or pull that acts on an object
8 of 52
How are forced caused?
By objects interacting with each other
9 of 52
What do all forces have?
A contact or non-contact force
10 of 52
What must two objects have to be in order for there to be a contact force?
They have to be touching
11 of 52
Give an example of interaction pair?
The gravitational attraction between the Earth and the Sun
12 of 52
What is mass measured in?
Kg
13 of 52
Define mass?
The amount of matter in an object
14 of 52
What is weight measured in?
Newtons (N)
15 of 52
What is the formula for calculating the weight of an object if you know its mass?
Weight (N) = Mass (Kg) × Gravitational field strength
16 of 52
Define resultant force?
An overall force on a point or object
17 of 52
What happens if a force moves an object?
Work is done
18 of 52
What happens when you apply a force to an object?
It may cause it to deform
19 of 52
What is it called when an object doesn't go back to how it was?
Inelastically deformed
20 of 52
How is work done?
When a force stretches or ocmpresses an object - this causes energy to be transferred to the elastic potential energy store of the object
21 of 52
How to caculate force?
Force = K (spring constant) × e (extension)
22 of 52
What is the 1st equation for work done?
Work done (J) = Force (N) × Distance (m)
23 of 52
What is the 2nd equation for work done?
Work done (J) = Force (N) × S (m)
24 of 52
Define work?
Simply a measure of energy transfer
25 of 52
A man is applying a force of 20N to move the box by 2m. Calculate the work done
1. Work done (J) = Force (N) × S (m) 2. 20N × 2m = 40 Nm
26 of 52
What happens a car breaks?
1. During braking, the brake presses against the wheel 2. The force of friction then acts between the brake and the wheel 3.The kinetic energy store of the car is then transferred to thermal energy store of the brakes
27 of 52
State a key factor abnout elastic materials?
They will always return to their original length or shape if we take away the forces acting on them
28 of 52
What is the equation needed to calculate the force near to stretch an elastic object
Force (N) = K (spring constant N/m) × e (extension m)
29 of 52
Calculate the force required to extend a spring by 0.04 metres. The spring constant is 200 N/m
1. Force = K × e 2. F = 200 × 0.04 = 8N
30 of 52
What is the equation for compression?
Force (N) = k (spring constant N/M) × e (compression m)
31 of 52
What happens when we stretch or compress an elastic object?
We are using a force to do work
32 of 52
What happens if you overstretch the spring?
You have exceeded the limit of proportionality
33 of 52
What does distance tell us?
How far an object moves
34 of 52
What does displacement tell us?
The distance that an object moves in a straight line from the start point to the finish point
35 of 52
What does the speed of an object tell us?
The distance the object travelled in a given time
36 of 52
What type of quanitity is speed?
A scalar quantity
37 of 52
Why is speed a scalar quantity?
As it does not involve direction
38 of 52
What is the equation for speed?
Speed (m/s) = distance (m)/time (s)
39 of 52
What is the symbol for speed?
V
40 of 52
What is the symbol for distance?
S
41 of 52
A car travels a distance of 260m in 20s. Calculate the speed of the car?
1. Speed (m/s) = distance (m)/time (s) 2. Speed (m/s) = 260/20 = 13 m/s
42 of 52
What is the normal walking speed?
1.5 m/s
43 of 52
What is the typical speed for running?
3 m/s
44 of 52
What is the typical speed for cycling?
6 m/s
45 of 52
What is the typical speed of a car on a main road?
12 m/s
46 of 52
What is the speed of the fastests train in the UK?
50 m/s
47 of 52
What is the typical speed of a cruising aeroplane?
250 m/s
48 of 52
Why is velocity a vector quantity?
Because includes both magnitude and direction
49 of 52
What is the equation for acceleration?
Acceleration = change in velocity (m/s)/time (s)
50 of 52
A car is travelling at a velocity of 15 m/s North. It accelerates to a velocity of 35 m/s north in 20 seconds. Calculate the acceleration of the car.
1. Acceleration = change in velocity (m/s)/time (s) 2. Accelertion = 35-15/20 = 1 m/s2
51 of 52
How can you calculate the acceleration of an object?
By using a velocity-time graph
52 of 52

Other cards in this set

Card 2

Front

Name some vector quantities?

Back

Force, velocity and displacement

Card 3

Front

What are scalar quantities?

Back

Preview of the front of card 3

Card 4

Front

Name some scalar quantities?

Back

Preview of the front of card 4

Card 5

Front

How are vectors represented?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Forces resources »