WorksheetsEnergy and forces
Total questions: 100
Worksheet time: 1hrs 16mins
What is current?
The flow of electrical charge
The rate of energy transfer
The energy transferred by each charge as it passes between two points.
The opposition of the flow of current
What is power?
The flow of electrical charge
The rate of energy transfer
The energy transferred by each charge as it passes between two points.
The opposition of the flow of current
What is potential difference?
The flow of electrical charge
The rate of energy transfer
The energy transferred by each charge as it passes between two points.
The opposition of the flow of current
What is resistance?
The flow of electrical charge
The rate of energy transfer
The energy transferred by each charge as it passes between two points.
The opposition of the flow of current
How does current behave in series circuits?
The current is the same at each position around the circuit.
The current from the power supply is shared between the components.
The current is largest at the first component and decreases as it passes through each component.
The current in the circuit is higher than the current in the components.
How does potential difference behave in series circuits?
Potential difference of the components adds together to equal the potential difference of the power supply.
Potential difference is the same for all components in a circuit.
Potential difference is largest at the first component and decreases as the current travels around the circuit.
Potential difference of each individual component is the same as the potential difference of the power supply.
What is the rule for resistance in a series circuit?
Resistance in series adds up.
Resistance in series is the same at all points of the circuit.
Resistance is always highest at the first component the current passes through.
Resistance is always lowest at the first component the current passes through.
How does current behave in parallel circuits?
The current of the individual branches adds up to equal the current of the main branch of the circuit.
The current of the individual branches is the same as the current in the main branch of the circuit.
The current of the individual branches is more than the current in the main branch of the circuit.
How does potential difference behave in parallel circuits?
Potential difference of each branch is the same as the potential difference of the power supply.
Potential difference of each branch is higher than the potential difference of the power supply.
Potential difference of each branch adds up to equal the potential difference of the power supply.
What is the rule for resistance in parallel circuits?
Resistance is lower than the value of an individual resistor.
Resistance adds up.
Resistance is shared equally between the components.
What colour is the live wire in a plug?
Brown
Blue
Green and yellow
Red
What colour is the neutral wire in a plug?
Brown
Blue
Green and yellow
Red
What colour is the Earth wire in a plug?
Brown
Blue
Green and yellow
Red
What is the function of the live wire in a plug?
Provides 230V of potential difference to appliances.
Connects the circuit, has a potential difference of 0V.
Carries surges of current to Earth.
What is the function of the neutral wire in a plug?
Provides 230V of potential difference to appliances.
Connects the circuit, has a potential difference of 0V.
Carries surges of current to Earth.
What is the function of the Earth wire in a plug?
Provides 230V of potential difference to appliances.
Connects the circuit, has a potential difference of 0V.
Carries surges of current to Earth.
Other than the Earth wire, give one safety feature of a plug.
What happens in a series circuit when more cells are added?
The potential difference and current both increase.
The potential difference increases, the current decreases.
The potential difference decreases, the current increases.
The potential difference and current stay constant.
What happens in a parallel circuit when more cells are added?
The potential difference and current both increase.
The potential difference increases, the current decreases.
The potential difference decreases, the current increases.
The potential difference and current stay constant.
In the required practical for resistance in a wire, what are the expected results?
As length of wire increases, resistance increases at the same rate.
As length of wire increases, resistance decreases.
As length of wire increases, resistance remains constant.
What is the relationship between current and resistance?
They are directly proportional
They are inversely proportional
They show a positive correlation
Which unit is used to measure current?
Amps
Volts
Ohms
Watts
Which unit is used to measure potential difference?
Amps
Volts
Ohms
Watts
Which unit is used to measure resistance?
Amps
Volts
Ohms
Watts
Which unit is used to measure power?
Amps
Volts
Ohms
Watts
Identify the circuit symbol
Diode
Light Emitting Diode (LED)
Light Dependent Resistor (LDR)
Ammeter
Identify the circuit symbol
Light Dependent resistor
Variable Resistor
Thermistor
Resistor
Identify the circuit symbol
Resistor
Fuse
Thermistor
Lamp
Identify the circuit symbol
Battery
Power Pack
Ammeter
Lamp
Identify the circuit symbol
Thermistor
Light Dependent Resistor
Variable Resistor
Resistor
Which of these is a correct IV graph for a diode
Which of the following does this graph apply to?
A diode
A fixed resistor
A filament lamp
Which of the following does this graph apply to?
diode
filament lamp
fixed resistor
Which of the following does this graph apply to?
diode
filament lamp
fixed resistor
Which of the following has this circuit symbol?
diode
fixed resistor
filament lamp
Which of the following has this circuit symbol?
diode
fixed resistor
filament lamp
This is the symbol for a...
Motor
Ammeter
Bulb
Voltmeter
This is the symbol for a...
Thermistor
Bulb
Fixed Resistor
Ammeter
This is the symbol for a...
Bulb
Voltmeter
Ammeter
Motor
This is the symbol for a...
Light Emitting Diode
Light Dependent Resistor
Fuse
Cell
This is the symbol for a...
Fuse
Cell
Fixed Resistor
Variable Resistor
Which of the following provides alternating current (AC)?
Plugging an appliance into the mains.
An appliance that is battery operated.
Which of the following provides direct current (DC)?
An appliance that is plugged into the mains.
An appliance that is battery operated.
What is the potential difference of mains electricity?
230V
50V
13V
What is the frequency of mains electricity?
230Hz
50Hz
13Hz
What is the national grid?
A network of electrical cables and transformers
Pylons
Cables and the power station
What is the equation linking kinetic energy, mass and velocity?
Energy = mass x velocity2
Energy = mass / velocity
Energy = 0.5 x mass x velocity2
Energy = mass x velocity
What are the units for energy?
Joules (J)
Watts (W)
Kilograms (kg)
Newtons (N)
What are the units of mass?
Joules (J)
Watts (W)
Kilograms (kg)
Newtons (N)
What is the equation linking gravitational field strength, gravitational potential energy and height?
Gravitational field strength = mass x gravitational potential energy x height
Gravitational potential energy = mass x gravitational field strength x height
Height = mass x gravitational field strength
What are the units of gravitational field strength?
Newtons (N)
Kilograms (kg)
Kilograms per newton (kg/N)
Newtons per kilo (N/kg)
What is the equation linking energy transferred, power and time?
Power = energy x time
Power = energy / time
Energy = time / power
What are the units of work done?
Joules (J)
Watts (W)
Kilograms (kg)
Newtons (N)
Food, batteries, fuel and muscles store which energy type?
Elastic potential energy
Kinetic energy
Thermal energy
Chemical energy
Which energy store changes as height of an object changes?
Kinetic energy
Gravitational potential energy
Elastic potential energy
Sound energy
Which energy store is linked with springs and catapults?
Nuclear energy
Light energy
Kinetic energy
Elastic potential energy
Which two energy stores change depending on the position of an object?
Electrical energy
Elastic potential energy
Gravitational potential energy
Chemical energy
What is the relationship between KE and GPE?
Direct proportion - they both increase at the same rate
Direct proportion - as KE increases, GPE decreases
Inverse proportion - they both increase at the same rate
Inverse proportion - as KE increases, GPE decreases
Which type of energy is stored in an inflated balloon
Gravitational potential energy
Elastic potential energy
Strain energy
Chemical energy
What is the definition of efficiency?
A measure of how much energy is wasted by an appliance
A measure of how quickly energy is transferred to an appliance
A measure of the energy transferred usefully to an appliance
A measure of the energy given off to the surroundings by an appliance
Which key term is used to describe energy being spread out or wasted?
Efficient
Deficient
Dissipate
Elevate
What term is used to describe a method for reducing unwanted energy transfers by reducing friction?
Insulation
Titration
Lubrication
Dissipation
What is a thermal insulator?
A non-conductive material
A conductive material
What is the name of the method of reducing unwanted energy transfers by the use of non-conductive materials?
Insulation
Titration
Lubrication
Dissipation
What is the law of conservation of energy?
Energy is created and transferred
Energy is created and stored
Energy is stored and destroyed
Energy is stored and transferred
How does thermal conductivity of a material affect the rate of conduction across that material?
The higher the conductivity, the faster the rate of conduction
The higher the conductivity, the slower the rate of conduction
The lower the conductivity the faster the rate of conduction
What are the units of power?
Joules (J)
Watts (W)
Kilograms (kg)
Newtons (N)
What is the definition of power?
How much electricity passes through an appliance
The amount of energy wasted by an appliance
The rate of energy transfer or the rate of doing work
The rate of electron transfer
What is the equation linking power, time and work done?
Power = work done / time
Power = work done x time
Work done = power / time
Which energy transfers relate to an object being projected upwards?
Increase chemical, increase KE, increase sound
Increase GPE, decrease KE, increase thermal
Increased KE, decreased GPE
Decrease GPE, increase KE, increase thermal
Which energy transfers relate to a moving object hitting an obstacle?
Decrease sound, decrease chemical, decrease thermal
Increase sound, decrease chemical, increase thermal
Decrease KE, increase sound, increase thermal
Increase KE, increase chemical, decrease thermal
What does it mean if a resource is renewable?
The resource is replenished
The resource will eventually run out
The resource will always release energy
The resource relies on external factors
What does it mean if a resource is reliable?
The resource is replenished
The resource will eventually run out
The resource will always release energy
The resource relies on external factors
What does it mean if a resource is non-renewable?
The resource is replenished
The resource will eventually run out
The resource will always release energy
The resource relies on external factors
Which resource is renewable?
Coal
Natural gas
Nuclear
Biofuel
Which resource does not release carbon dioxide?
Coal
Natural gas
Nuclear
Biofuel
Which resource is reliable?
Solar
Wind
Wave
Tidal
Which resource is described as carbon neutral?
Biofuel
Fossil fuels
Nuclear
Hydeoelectric
What is the same as Work Done?
Power
Energy Transferred
Which one is True?
The greater the Resistance the Smaller the Current
The greater the Resistance the Greater the Current
Which one is a LED?
Which one is a Variable Resistor?
Which one is a Diode?
Which one is a Thermistor?
Which one is the Graph for an Ohmic Conductor?
Which one is a Live Wire?
Brown. Provides the alternating potential difference
Blue. Completes the circuit and carries away current
Green and Yellow. Only carries current when there is a fault
Which one is a Neutral Wire?
Brown. Provides the alternating potential difference
Blue. Completes the circuit and carries away current
Green and Yellow. Only carries current when there is a fault
Which one is an Earth Wire?
Brown. Provides the alternating potential difference
Blue. Completes the circuit and carries away current
Green and Yellow. Only carries current when there is a fault
When a spring is compressed, which of these energy stores is energy transferred to?
The spring's elastic potential energy store
The spring's nuclear energy store
The spring's magnetic energy store
What will happen to the pressure of a fixed volume of gas if its temperature is increased?
It will decrease
It will increase
It will stay the same
Which energy store changes as height of an object changes?
Kinetic energy
Gravitational potential energy
Elastic potential energy
Sound energy
As a skydiver falls, their speed increases. Their gravitational potential energy store decreases, and their __________ energy store increases
thermal
kinetic
What is useful energy?
energy transferred into an energy store that is wanted
energy transferred into an energy store that is not wanted
True or false: "Energy cannot be created or destroyed".
False
True
When a radio is on, what kind of energy does it produce?
light
sound
gravitational potential
thermal
What are energy sources that wont run out called?
renewable
non-renewable
everlasting
invincible
Which statement is true about coal and natural gas?
Both are renewable resources
Both require wind in order to work
Both lead to greenhouse gases and climate change
Neither one causes global warming
What is a negative impact of wind turbines?
unreliable
noisy
visual pollution
produce carbon dioxide gas
Which of these are non renewable energy resources?
coal, oil, gas, wind
coal, oil, gas, tidal
coal, oil, gas, nuclear
coal, oil, gas, solar
