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WorksheetsTerm 1 Revision Physics
Total questions: 75
Worksheet time: 56mins
The symbol shown here represent -----------
bulb
buzzer
motor
wire
Which of the following option is correct for the picture shown here?
It is used for connecting the components.
It is a component
that spins.
It is a component that provides energy.
It is a component that makes sound in a circuit.
Protons have --------------- charge
negative
positive
no charge
positive and negative
What is the charge of an electron?
negative
positive
no charge
none of these.
The factor you keep the same in a scientific enquiry investigation is called ---------------
independent variable.
controlled variable.
dependent variable.
fair testing.
Variable we change in a scientific enquiry investigation is called as -------variable
controlled
independent
dependent
classifying
The variable we measure in a scientific enquiry investigation is called ----------------------variable.
dependent
controlled
independent
exploring
Energy cannot be created or destroyed.
True
False
What transformation occurs in a toaster?
Electrical to light
Electrical to thermal
Thermal to mechanical
Solar to electrical
What sort of energy transformation is this?
Chemical to Thermal
Thermal to chemical
Kinetic to potential
Open to closed
In an electrical wire, the copper core is a ........................... and the two plastic covers are ............................. (ANS form: A,B type in singular )
(a)
What are the safe ways to work with electricity?
Turn off mains electricity before fixing exposed parts
use exposed cables and broken plugs
Keep electrical appliances out of wet places
put your finger in a socket
not overload an electrical outlet
Which of the following is an insulator?
an eraser
a wire
a penny
a metal spoon
Which of the following is a conductor?
wood
rubber
metal
plastic
Imagine you are creating a circuit. It works and the light bulb turns on. Then you add a piece of plastic to the circuit, and the light bulb does not turn on. We can infer that the plastic is
an insulator
a conductor
an electron
static electricity
If the light bulb turns ON in a circuit, that means the circuit is
open
closed
Wood is an insulator.
Metal is an insulator.
Keys are insulators.
Toothpicks are conductors.
Energy is the ability to do work.
True
False
What is this symbol?
Switch
Fuse
Bulb
Resistor
What is this symbol?
Switch
Fuse
Bulb
2 cell / battery
A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?
Light bulb 1 and light bulb 2 will both be on
Light bulb 1 will be off, but light bulb 2 will be on
Light bulb 1 and light bulb 2 will both be off
Light bulb 1 will be on, but light bulb 2 will be off
The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut a the point shown by the arrow?
0
1
2
3
A string of lights with small bulbs is shown below. The bulbs are connected by wire that is covered in an insulator. When the lights are on, electricity travels in....
a complete circuit
a sound wave
a light ray
an incomplete path
Why is electrical wiring usually made from copper?
Because copper is shiny
Because copper conducts electricity
Because copper is not magnetic
Because copper insulates electricity
What type of circuit is this an image of?
series circuit
parallel circuit
Will the light bulbs light up in this image?
Yes, both of them will
Yes, but only the one on the right
No, neither of them will
Yes, but only the one on the left
Will this circuit light the bulbs?
Yes, both will light up
Yes, but only the one on the right
Yes, but only one on the left
No, neither of the bulbs will light up
When the switch is closed the buzzer will sound because -
What is missing from this circuit? Why would the light bulbs be off?
The battery, there is no power for the circuit to work.
The switch is open, so the circuit is broken.
The third light bulb, that is needed to complete the circuit.
The wires are not connected properly.
What will most likely happen if you add an additional battery to a circuit?
the bulb will shine half as bright as it did with one battery
the bulb will shine the same
the bulb will shine brighter than it did with one battery
the bulb will not shine
What is the definition of a fossil fuel?
A fuel which you can use over and over again.
Formed from the deposits of sediments over millions of years.
Formed from the remains of dead organisms over millions of years.
A fuel which is renewable
A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?
Light bulb 1 and light bulb 2 will both be on
Light bulb 1 will be off, but light bulb 2 will be on
Light bulb 1 and light bulb 2 will both be off
Light bulb 1 will be on, but light bulb 2 will be off
Batteries convert what type of energy into electricity?
All of them
Mechanical energy
Chemical energy
Kinetic energy
Lightbulbs use electricity to make light. What else do lightbulbs often give off?
Wind Energy
Heat Energy
Sound energy
Potential energy
What is the difference between a conductor and an insulator?
A conductor is magnetic and an insulator is not
An insulator is magnetic and a conductor is not
A conductor allows electricity to flow through it easily and an insulator does not.
An insulator allows electricity to flow through it easily and a conductor does not
A closed electrical path that has all necessary components to allow the electrical charge to flow
parallel Circuit
series Circuit
complete path/closed circuit
insulator
materials that allow electricity or heat to travel through it. All METALS and Water are good examples of this.
insulator
conductor
series circuit
power source
Philip needs to choose an item to use to complete a circuit he is making.
Which of the following items would be his BEST choice?
metal coin
glass bead
plastic straw
wooden toothpick
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
F
G
H
J
A
B
C
D
Which form of energy is produced when a lamp is switched on?
Sound energy
Electrical energy
Chemical energy
Light energy
What is the form of energy that allows you to see the things around you?
Heat
Sound
Light
Air
What kind of energy keeps people warm?
Sound energy
Moon energy
Muscle energy
Heat energy
It is an example of: _________________ energy
Light
Sound
Heat
It is an example of ________________ energy
Light
Sound
Heat
The lighthouse is an example of ____________ energy.
Light
Sound
Heat
A radio, siren, and a television are all designed to produce _______ energy.
light energy
sound energy
mechanical energy
electrical energy
Students built a simple circuit connecting a battery to a light bulb. Which energy transformations happen when the students close the circuit and the bulb lights up?
Chemical to radiant to electrical
Electrical to chemical to radiant
Chemical to electrical to radiant
Radiant to electrical to chemical
What component is used to close or break a circuit?
bulb
wire
electric cell
switch
electricity is the flow of which subatomic particle?
protons
electrons
neutrons
all of the above
A closed electrical path that has all necessary components to allow the electrical charge to flow
parallel Circuit
series Circuit
complete path/closed circuit
insulator
The picture shows an electric circuit. This is a series circuit because:
The electrical current is divided between the three light bulbs.
It has 3 light bulbs.
There is only one path for the electrons to flow.
It uses a single battery
The symbol shown here represent -----------
bulb
buzzer
motor
wire
A light bulb 10 % of the energy into light. ------------% of energy is converted into heat?
90
100
10
0
