WorksheetsElectricity STEPUP
Total questions: 25
Worksheet time: 28mins
Which of the following can be designed to run without electricity?
Clock
Kettle
Oscilloscope
Phone
None of the above
What are the key differences between the old cathode ray tube (CRT) TV and the modern LCD TV?
CRT TV's consume more power
LCD TV's consume more power
The way the images on the screen are generated
Amount of heat given out during operation
Which of the following shells, K,L or M in an atom has the most electrons?
The K shell
The L Shell
The M shell
They all have the same number of electrons
Select the statements below that are true.
Usually, an atom has the same number of electrons and protons.
Protons carry a positive charge
An atom can gain electrons
Electrons carry a positive charge
Electrons carry a negative charge
What is a "bound" electron?
An electron that has escaped from an atom
An electron that is moved by a magnetic field
An electron that is affected by an electric field
An electron that orbits around the atom
What do you call an atom that loses an electron
An atom that has been reduced.
An atom that has been ionized.
An atom that has been bound
None of the above
Which of the following graphics depicts an atom being reduced?
None of the above
Which of the following electric field lines are correctly drawn ?
Which of the following statement are TRUE about the electric fields?
An electric field causes a charge to move.
The fields from a positive charge attracts another positive charge
A positive and negative charge is necessary to generate an electric field
None of the above
Which of the following correctly shows filed lines between two charges?
None of the above
The term "F" equation above describe
The field between the two charges
The force between the 2 charges
How far the charges are from each other.
How fast the charges are moving from each other
The equation above is Coulombs Law which is an ________ ________ law. Which two words are the correct ones for the blanks?
inverted square
infected square
inverse square
in vivo square
The equation above describes the force between 2 charges. As the distance between the charges is tripled, the force decreases ...
4 times
16 times
2 times
9 times
The design of the device shown can be found in
an LCD TV
an oscilloscope
a CRT TV
all of the above
Which of the following diagram correctly shows the path of the electron beam?
A
B
C
D
What will happen to the charge inside a parallel plate arrangement as shown
It will move to the positive plate
It will move to the negative plate
It will move upwards
it will move downwards
Select the statements that are true about the different charges at the positions shown in a parallel electric field.
A has the most potential energy
A has the least potential energy
They all have equal potential energy
They all have different potential energy
The basic configuration of a battery is as shown in the diagram. Which is true about the portion that is shown in blue?
It is called the electrolyte
It is called the plasma
It allows charges to flow between the terminals
It is provides charges for the battery
In the diagram of the dry cell battery, which of the labels are electrodes of the battery
A & B
C & D
B & C
A & D
In the circuit shown in the diagram, indicate all the alphabets that are the correct labels.
A - voltmeter
B -voltmeter
C- the load
B - ammeter
The equation above shows the force on a charge q moving at velocity V in a magnetic field with strength B. Which are the vector terms in the equation?
q
F
V
B
In the diagram above, V, B and F indicate the velocity, magnetic field strength and the force on a charge. Which of A, B and C indicate correctly the directions of the force
A & B
B & C
A & C
None of the above
All of the above
The diagram given shows that
a current in a wire creates a circular magnetic field
by gripping a wire, you can create a magnetic field
The magnetic field created by the current depends on the direction of flow of the current
The thumb shows which direction of the circular magnetic field
The diagram above shows
A coil producing an electric field
A current in a coil producing a magnetic field
An electromagnet
None of the above
Which of the following correctly label the key parts of a motor?
A - commutator, B - brush, C - coil
A - brush, B - commutator, C - coil
A - coil, B - brush, C - commutator
None of the above
