GCSE revision

Question 1

What is the unit of force?

Answer 1

Newton

Question 2

True or False: Energy can be created or destroyed.

Answer 2

False

Question 3

Fill in the blank: The formula for calculating work is _____ = force × distance.

Answer 3

work

Question 4

What is the speed of light in a vacuum?

Answer 4

Approximately 299,792,458 meters per second

Question 5

What is the principle of conservation of energy?

Answer 5

Energy cannot be created or destroyed, only transformed.

Question 6

Multiple choice: Which of the following is a scalar quantity? A) Velocity B) Acceleration C) Speed D) Force

Answer 6

C) Speed

Question 7

What is the definition of mass?

Answer 7

The amount of matter in an object.

Question 8

True or False: The acceleration due to gravity on Earth is approximately 9.81 m/s².

Answer 8

True

Question 9

What is the formula for calculating density?

Answer 9

Density = mass/volume

Question 10

Fill in the blank: An object in motion stays in motion unless acted upon by an _____ force.

Answer 10

external

Question 11

What is the unit of energy?

Answer 11

Joule

Question 12

Multiple choice: Which law states that for every action there is an equal and opposite reaction? A) Newton’s First Law B) Newton’s Second Law C) Newton’s Third Law D) Law of Conservation of Momentum

Answer 12

C) Newton’s Third Law

Question 13

What is the definition of velocity?

Answer 13

The speed of an object in a specific direction.

Question 14

True or False: Kinetic energy depends on the mass and speed of an object.

Answer 14

True

Question 15

What is the formula for kinetic energy?

Answer 15

Kinetic Energy = 0.5 × mass × velocity²

Question 16

Fill in the blank: The force that opposes the motion of an object is called _____ force.

Answer 16

frictional

Question 17

What is the unit of power?

Answer 17

Watt

Question 18

Multiple choice: Which of the following is NOT a form of energy? A) Thermal B) Chemical C) Gravitational D) Speed

Answer 18

D) Speed

Question 19

What is the definition of momentum?

Answer 19

The product of an object’s mass and its velocity.

Question 20

True or False: An object at rest has kinetic energy.

Answer 20

False

Question 21

What is the formula for calculating gravitational potential energy?

Answer 21

Gravitational Potential Energy = mass × gravity × height

Question 22

Fill in the blank: In a vacuum, all objects fall at the same _____ regardless of their mass.

Answer 22

rate

Question 23

What is the unit of pressure?

Answer 23

Pascal

Question 24

Multiple choice: Which of the following is a vector quantity? A) Distance B) Speed C) Displacement D) Mass

Answer 24

C) Displacement

Question 25

What is the definition of frequency?

Answer 25

The number of occurrences of a repeating event per unit time.

Question 26

True or False: The wavelength of a wave is the distance between two consecutive crests.

Answer 26

True

Question 27

What is the formula for calculating force?

Answer 27

Force = mass × acceleration F = M x A

Question 28

Fill in the blank: The three states of matter are solid, liquid, and _____

Answer 28

gas

Question 29

What is the definition of thermal energy?

Answer 29

The total kinetic energy of the particles in an object.

Question 30

Multiple choice: What is the unit of electric current? A) Volt B) Watt C) Ampere D) Ohm

Answer 30

C) Ampere

Question 31

Can electricity pass through an insulator?

Answer 31

No

Question 32

What is the formula for Ohm's Law?

Answer 32

Voltage = Current × Resistance (V = I x R)

Question 33

Fill in the blank: The process of energy transfer through direct contact is called _____ conduction.

Answer 33

thermal

Question 34

What is the definition of a circuit?

Answer 34

A closed loop through which electric current can flow.

Question 35

Multiple choice: Which type of wave requires a medium to travel? A) Electromagnetic B) Sound C) Light D) Radio

Answer 35

B) Sound

Question 36

The amplitude of a wave is related to it’s _____

Answer 36

Energy

Question 37

What is the unit of temperature in the Celsius scale?

Answer 37

Degree Celsius

Question 38

Fill in the blank: The bending of light as it passes from one medium to another is called _____

Answer 38

refraction

Question 39

What is the definition of a renewable energy source?

Answer 39

An energy source that is replenished naturally and can be used repeatedly.

Question 40

Multiple choice: Which of the following is a non-renewable energy source? A) Solar B) Wind C) Coal D) Biomass

Answer 40

C) Coal

Question 41

The law of reflection states that the angle of incidence equals the angle of ______

Answer 41

Reflection

Question 42

What is the definition of a wave?

Answer 42

An oscillation with amplitude and frequency

Question 43

Fill in the blank: The _____ is the highest point of a wave.

Answer 43

crest

Question 44

What is the unit of frequency?

Answer 44

Hertz

Question 45

Multiple choice: Which of the following is a type of mechanical wave? A) Light B) Sound C) Radio D) X-ray

Answer 45

B) Sound

Question 46

Waves can interfere with each other, resulting in what 2 types of interference.

Answer 46

constructive destructive

Question 47

Name the 3 types of radiation

Answer 47

Alpha Beta Gamma

Question 48

What is the formula for power?

Answer 48

P = IV

Question 49

If an appliance is 50% efficient and I input 100W how much is wasted?

Answer 49

50W

Question 50

Define mass

Answer 50

The amount of matter in an object

Question 51

Where does convection occur

Answer 51

In water and other liquids