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Physics Quiz

Description

Year 7 Physics Quiz on Physics Quiz, created by Lakshmi Lakshmanan on 17/05/2017.
Lakshmi Lakshmanan
Quiz by Lakshmi Lakshmanan, updated more than 1 year ago
Lakshmi Lakshmanan
Created by Lakshmi Lakshmanan almost 7 years ago
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Resource summary

Question 1

Question
What is energy?
Answer
  • Measure of what an object can do
  • Measure of the matter an object has
  • Measure of the distance covered per unit time

Question 2

Question
Energy is measured in [blank_start]Joules.[blank_end]
Answer
  • Joules

Question 3

Question
Which one of the option listed below are types of energy?
Answer
  • Nuclear potential energy
  • Acidic energy
  • Kinetic energy
  • Gas energy

Question 4

Question
Energy can be destroyed.
Answer
  • True
  • False

Question 5

Question
Energy can be transformed from one type to another.
Answer
  • True
  • False

Question 6

Question
[blank_start]Heat[blank_end] is a way of transferring energy.
Answer
  • Heat

Question 7

Question
Work done is a measure of energy.
Answer
  • True
  • False

Question 8

Question
What unit does work done have?
Answer
  • Joules
  • Watts
  • Volts
  • Kilograms

Question 9

Question
Work done calculates how much energy is needed to move an object with a [blank_start]force[blank_end] and a distance.
Answer
  • force
  • speed
  • height

Question 10

Question
What is the equation for work done?
Answer
  • Work done = force*distance
  • work done=energy /time

Question 11

Question
The force is measured in [blank_start]newtons[blank_end] (N)
Answer
  • newtons

Question 12

Question
The distance is measured in centimetres.
Answer
  • True
  • False

Question 13

Question
Power calculates :
Answer
  • the rate at which energy is delivered
  • the speed of something

Question 14

Question
P=E/t
Answer
  • True
  • False

Question 15

Question
The unit of power is [blank_start]watt[blank_end] (W) and the [blank_start]time[blank_end] is always in seconds (s).
Answer
  • watt
  • Volt
  • Joules
  • time
  • energy
  • distilation

Question 16

Question
Efficiency shows the percentage of energy that is converted into:
Answer
  • useful energy
  • wasted energy

Question 17

Question
Efficiency = 100(Useful energy output/ total energy input)
Answer
  • True
  • False

Question 18

Question
The energy contained in foods is [blank_start]chemical[blank_end] energy.
Answer
  • chemical

Question 19

Question
What is a calorie?
Answer
  • unit of energy used for how much energy is in food
  • unit of speed for how fast a vehicle can travel

Question 20

Question
1 Kcal =4841J
Answer
  • True
  • False

Question 21

Question
What is an energy resource?
Answer
  • Where the energy comes from
  • where the source of energy comes from

Question 22

Question
What is a non-renewable energy resource?
Answer
  • resource that will one day run out
  • it will never run out

Question 23

Question
Where does energy for tidal power come from?
Answer
  • the sun
  • the moon

Question 24

Question
Nuclear power is when radio active material , usually uranium or thorium , is bombarded with neutrons.
Answer
  • True
  • False

Question 25

Question
What is the difference between biomass and biofuel?
Answer
  • biomass is used to produce biofuel
  • biomass is bigger than biofuel

Question 26

Question
What is speed?
Answer
  • it's the distance covered per unit tme
  • it's the height covered per unit time

Question 27

Question
s=d/t
Answer
  • True
  • False

Question 28

Question
What is the unit for speed?
Answer
  • m/s
  • mph

Question 29

Question
What is the unit for distance?
Answer
  • metres
  • kilometres

Question 30

Question
On a distance time graph, the steeper the line , the [blank_start]faster[blank_end] the object is moving.
Answer
  • faster

Question 31

Question
On a distance time graph, a [blank_start]straight[blank_end] line shows a constant speed.
Answer
  • straight

Question 32

Question
Velocity describes the [blank_start]speed[blank_end] at which something is travelling and the [blank_start]direction.[blank_end]
Answer
  • speed
  • direction

Question 33

Question
Acceleration = velocity / time
Answer
  • True
  • False

Question 34

Question
What is a contact force?
Answer
  • it acts directly on the object
  • it acts at a distance from an object

Question 35

Question
A [blank_start]free body[blank_end] diagram shows all the forces acting on a single object.
Answer
  • free body

Question 36

Question
What is weight?
Answer
  • the force on an object due to mass and the amount of gravity.
  • the amount of matter an object has

Question 37

Question
What is the equation for weight?
Answer
  • Weight =mass *gravity field strength
  • W=mg
  • W=v/t

Question 38

Question
On the earth the gravity is [blank_start]9.8 N/kg.[blank_end]
Answer
  • 9.8 N/kg

Question 39

Question
On the moon the gravity is [blank_start]1.6 N/kg.[blank_end]
Answer
  • 1.6 N/kg

Question 40

Question
What are forces measured using?
Answer
  • Newton meter
  • ammeter

Question 41

Question
The units for force are:
Answer
  • newtons
  • amps

Question 42

Question
Newton's first law- Unbalanced forces cause an acceleration.
Answer
  • True
  • False

Question 43

Question
Newton's second law -An object's mass affects how much force is needed to accelerate it.
Answer
  • True
  • False

Question 44

Question
According to Newton's second law, what's the equation for acceleration?
Answer
  • acceleration=force/mass
  • acceleration=mass/force

Question 45

Question
The unit for acceleration is m/s
Answer
  • True
  • False

Question 46

Question
The unit for mass is kg
Answer
  • True
  • False

Question 47

Question
What is newton's 3rd law?
Answer
  • Forces acting on an object come in pairs
  • Force is the same as gravity

Question 48

Question
What is electricity?
Answer
  • The movement of charged particles, generally electrons.
  • movement of acceleration.

Question 49

Question
[blank_start]Current[blank_end] is the rate of flow of charge.
Answer
  • Current

Question 50

Question
Voltage is the [blank_start]energy[blank_end] per charge.
Answer
  • energy

Question 51

Question
Resistance is a measure of how hard it is for [blank_start]current[blank_end] to flow.
Answer
  • current

Question 52

Question
A conductor allows energy to flow through it as it has many free electrons.
Answer
  • True
  • False

Question 53

Question
What does an ammeter do?
Answer
  • Measures the current in a series circuit
  • Measures the current in a parallel circuit

Question 54

Question
The current in a series circuit is the same all around the circuit.
Answer
  • True
  • False

Question 55

Question
The longer the wire, the lower the resistance.
Answer
  • True
  • False

Question 56

Question
power = current * voltage
Answer
  • True
  • False

Question 57

Question
The diode allows current to flow in 1 direction.
Answer
  • True
  • False

Question 58

Question
A motor converts [blank_start]electrical energy[blank_end] into kinetic energy.
Answer
  • electrical energy

Question 59

Question
The thermistor changes resistance with water.
Answer
  • True
  • False

Question 60

Question
The buzzer converts electrical energy into [blank_start]sound[blank_end] energy.
Answer
  • sound
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