Physics Mock

Question 1

What’s a scaler and what unit does it measure it?

Answer 1

-Size or magnitude only
-measures in m/s (distance)

Question 2

What is vector and what unit does

Answer 2

-magnitude and direction
-measure in m/s
-acceleration

Question 3

What does the term displacement mean?

Answer 3

Distance but with direction

Question 4

What was newton 1st law?

Answer 4

object remains in the same state of motion unless a resultant force, If all the forces are balanced the resultant force is zero.

Question 5

What does the term friction mean?

Answer 5

When 2 object slide thought each other

Question 6

What’s the equation that link with velocity acceleration and time

Answer 6

a=v-u
—-——
t

Question 7

What is the equation link with time speed and distance

Answer 7

Speed=distance
——————
Time

Question 8

Give 2 example of a scaler quantities

Answer 8

Distance
Mass
Temperature
Height
Speed
Time

Question 9

Give 2 example of vector quantities

Answer 9

Weight
Displacement
Force
Velocity

Question 10

What does the term resultant force mean?

Answer 10

Multiple force acting on a object at once

Question 11

What does the term braking distance mean?

Answer 11

Distance of a vehicle travels in the time after the driver has applied a break.

Question 12

What does the term stopping distance mean?

Answer 12

When the driver must bring the vehicle to a stop in the shortest distance possible

Question 13

What does the term Reaction time

Answer 13

amount of time that takes places between when we perceive something to when we respond to it

Question 14

Give 2 factors that can affect the reaction time

Answer 14

Tiredness
Drugs
Distraction
Alcohol

Question 15

Give a reason why a driver applied breaking distance?

Answer 15

Poor road
Poor vehicle condition
More mass is in the vehicle

Question 16

Give a type of energy stores

Answer 16

Magnetic
Internal
Chemical
Kinetic
Nuclear
Gravitational potential

Question 17

What does the term energy efficiency mean?

Answer 17

transferred into useful called efficiency

Question 18

How do you calculate energy efficiency?

Answer 18

Useful energy transferred
————————————-
Total energy supplies

If asked to give percentages times by 100

Question 19

How to keep warm

Answer 19

The choices between material that are poor conduct it has a low resistance

Question 20

What is the term renewable energy mean?

Answer 20

Energy which are able to quickly replenish themselves and can be use over and over again

Question 21

What is the term non-renewable energy mean?

Answer 21

Once sources are used up, they cannot be replaced/replalished.

Question 22

Give two examples of a non-renewable

Answer 22

Give two examples of a non-renewable

Question 23

And advantages and the disadvantages of fossil

Answer 23

Advantages: Cheap
Disadvantage: Supplies are limited

Question 24

Which visible It has the lowest frequency and the highest frequency

Answer 24

Red light has the lowest frequency
Violet light has the highest frequency

Question 25

What is the order of a visible light sequence

Answer 25

Red , Orange , Yellow , Green , Blue , Indiago , Violet

Question 26

What does the term electromagnetic wave mean?

Answer 26

Vibrations between an electric field and magnetic field.

Question 27

What does all electromagnetic wave have?

Answer 27

Travels at the same speed transverse energy as radiation

Question 28

Waves with a short wavelength has a…

Answer 28

A high frequency and high energy

Question 29

Waves with a long wavelength has a…

Answer 29

Short frequency and low energy

Question 30

What are the uses of a long wavelength?

Answer 30

Communication Broadcasting television Microwave

Question 31

What are the uses of a short wavelength?

Answer 31

Cooking Communication

Question 32

What is the aim of investigate light refraction?

Answer 32

To see a clear ray reflection from the surface of the block

Question 33

Who made the atomic model?

Answer 33

Scientist, John Dalton . Carried series of experiments

Question 34

What is the relative mass of a 🫐proton🫐 and the relative charge?

Answer 34

Relative mass : 1 Relative charge : +1

Question 35

What is the relative mass of a 🫐neutron🫐 and the relative charge?

Answer 35

Relative mass:1 Relative neutron:0

Question 36

What is the relative mass of a 🫐electron🫐 and the relative charge?

Answer 36

Relative mass:-1 Relative charge:1/1860

Question 37

What is the term background radiation?

Answer 37

level of ionising radiation presented in the environment.

Question 38

What is the mass number that the first second and third layer of a atomic model?

Answer 38

1st: 2 2nd:8 3rd:8

Question 39

What does the term radioactive decay mean?

Answer 39

atomic nucleus loses energy by radiation.

Question 40

What does the term half-life mean?

Answer 40

Time required for a quantity of substance to reduce to half of an internal value

Question 41

What does the term half-life mean?

Answer 41

The time required for a quantity of substance to reduce to half of an internal value

Question 42

What are the dangers of radioactivity?

Answer 42

Skin burns Cause of cancer

Question 43

What are the dangers EM radiation?

Answer 43

Damage DNA and cells

Question 44

What are the steps toward doing Investigating light refraction

Answer 44

1) Set up a ray box, slit and lens so that a narrow ray of light is produced. 2) lace a 30 centimetre (cm) ruler near the middle of a piece of plain A3 paper 3) Place the longest side of a rectangular acrylic polymer 4)Use the ray box to shine a ray of light at the point where the normal meets the block. 5) The angle between the normal and the incident ray is called the angle of incidence. 6) Use a pencil on the paper, mark the path of the incident ray 7)Remove the block. Draw a line joining each cross to the point where the normal meets 8)Repeat steps 2 to 7 for different angles of incidence 9) Measure the angle of incidence and angle of refraction for each block.