WorksheetsForces as vectors retrieval 1
Total questions: 15
Worksheet time: 8mins
What is the best definition for potential difference?
the potential energy per electron.
the potential energy per unit of charge.
the kinetic energy per unit of charge.
the energy carried by an electron.
Figure 1 shows a flexible plastic strip being rubbed with a cloth.
Rubbing the plastic strip with the cloth causes the strip to become negatively charged.
Complete the sentence with 1 correct term.
The cloth is left with a (a) charge.
A lamp is connected to a 24 V power supply. The current through the lamp is 1.5 A.
Calculate the power of the lamp. (Answer to 2 Sig Fig with unit symbol).
(a)
Figure 1 shows the inside of a battery pack designed to hold three identical 1.5 V cells.
Which one of the arrangements shown in Figure 2 would give a 4.5 V output across the battery pack terminals T?
A student set up the electrical circuit shown in the figure.
What line best describes what happens to the total resistance of the circuit and the current through the circuit when switch S is closed.
Total resistance decreases, so current decreases
Total resistance decreases, so current increases
Total resistance decreases, so voltage decreases.
Total resistance increases, so current decreases.
Total resistance increases, so current increases.
The diagram shows the circuit used to obtain the data needed to plot the current-potential difference graph for a filament lamp.
Why is component M included in the circuit?
To keep the current constant.
To keep the potential difference constant.
To vary the current.
To vary the bulbs resistance.
If a charge flows through a resistor, which of the following happens to the resistor?
It gets colder
It gets hotter
It becomes positively charged
Nothing
What is power?
The number of repetitions of squats a body-builder can perform
The number of cylinders in a car
The rate at which energy is absorbed
The rate at which energy is transferred
What is the formula for power?
P = E⁄t
P = t⁄E
P = E⁄2t
P = 2E⁄t
Power, potential difference and current are correctly related by which equation?
P = I x V
P = 2I x V
P = I⁄V
P = I⁄2V
This is the symbol for a...
Thermistor
Bulb
Fixed Resistor
Ammeter
This is the symbol for a...
Motor
Ammeter
Bulb
Voltmeter
This is the symbol for a...
Heater
Motor
Diode
Light Dependent Resistor
This is the symbol for a...
Light Dependent Resistor
Light Emitting Diode
Thermistor
Cell
This is the symbol for a...
Light Emitting Diode
Fuse
Fixed Resistor
Variable Resistor
