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WorksheetsHameedah Physics Test week 1-4 1st term
Total questions: 70
Worksheet time: 1hrs 19mins
All of the following are base units of the SI system except:
kilogram
liter
meter
kilometer
The metric prefix for one one-thousandth is
mili
centi
kilo
mega
The metric prefix for one one-hundredth
mili
centi
kilo
mega
Physical quantities that cannot be derived from other physical quantities, sucsh as m, L and kg, are
base units
derived quantity
physical quantity
scalar quantity
What is the SI unit for mass?
g
kg
N
mg
What is the SI unit for length?
cm
m
km
mm
Which of the following is the correct metric prefix for 10-3?
milli-
nano-
mega-
micro-
Select all that applies
Physics is the study of
the earth
living things
chemical bonds
motion and energy
Accuracy -
How close measurements are to one another
How close measurements are to the true or accepted value
How close marked units are on a ruler
How close measurements are repeated
Precision -
How close measurements are to one another
How close measurements are to the true or accepted value
How close marked units are on a ruler
How close measurements are repeated
Which of the following include all SI units?
miles, inches, gallons
meters, miles, milliseconds
liters, kilograms, meters
pounds, ounces, liters
What does volume measure?
the amount of stuff or matter in an object
the gravitational pull on an object
the amount of space something takes up
the measure of how hot or cold something is
What does mass measure?
the amount of stuff or matter in an object
the gravitational pull on an object
the amount of space something takes up
measure of how hot or cold something is
What is area?
The amount of surface occupied by an object or a place .
The space occupied by a substance.
What is the SI unit of area?
m^2
m^3
metre
Which equation below would Anna use to find the volume of the package?
Marla has a garden with a length of 5 feet and a width of 3 feet. What is the area of her garden?
A = 8 feet
A = 15 feet
A= 15 square feet
A = 8 square feet
What is the formula for finding the area?
A=L x W
A=L x W x H
A= L + W + H
What is the formula for finding the volume?
V= LWH
V=LW
V=L + W + H
Define energy
state the unit of energy
List forms of energy
mention sources of energy.
Materials that can
be replaced at the rate
that we use them.
Renewable resources
Non-Renewable resources
Replaceable resources
Irreplaceable resources
Materials that cannot
be replaced at the rate
that we use them.
Renewable resources
Non-Renewable resources
Replaceable resources
Irreplaceable resources
Energy from the sun that can be converted into thermal or electrical energy.
Hydropower energy
Nuclear energy
Wind energy
Solar energy
Energy that comes from the splitting of the atoms in a reactor.
Hydropower energy
Nuclear energy
Wind energy
Solar energy
Energy that uses the wind's kinetic energy to generate electricity
Hydropower energy
Nuclear energy
Wind energy
Solar energy
It is the world's biggest source of energy
Solar
Hydropower
Coal
Wind
Energy source with the highest number of powerplants in our country.
Nuclear
Geothermal
Coal
Hydroelectric
The scientist who discovered that electric current can be induced when a magnet is rapidly inserted in and out of a coiled wire.
Albert Einstein
Alessandro Volta
Michael Faraday
Amadeo Avogadro
Produced by the phenomenon of flowing electrons.
Electricity
Voltage
Current
Resistance
It is where crude oil is transformed and refined into more useful products.
Power plants
Step-up Transformers
Step-down Transformers
Oil refinery
Identify when the kinetic energy in a ball becomes potential energy.
When the ball is thrown
When the ball is dropped
When the ball rolls down a hill
When the ball is rolled up a hill and stops at the top
Define potential energy
The energy of motion
Stored energy
Atomic energy
Heat energy
Define kinetic energy
The energy of motion
Stored energy
Heat energy
Gravitational energy
A moving object always has...
potential energy
nuclear energy
solar energy
kinetic energy
An example of chemical potential energy is the energy of
a stereo playing music
a moving arrow
a hamburger
a coiled spring
If an object is not moving, it has
potential energy
kinetic energy
chemical energy
nuclear energy
Identify who has more potential energy - a skier on top of a hill or a skier halfway down the hill?
The skier on top of the hill
The skier half way down the hill
They both have the same potential energy
Neither one has potential energy
The energy of a ball flying through the air is:
Only kinetic energy
Both kinetic and potential energy
Mostly sound and heat energy
Gravitational energy
Identify the diagram that shows the spring with the most potential energy.
A
B
C
D
Identify which best describes what is happening when a moving car comes to a stop.
The car's kinetic energy is increasing and its potential energy is increasing
The car's kinetic energy is decreasing and its potential energy is increasing
The car's kinetic energy is decreasing and its potential energy is decreasing
The car's kinetic energy is increasing and its potential energy is decreasing
Identify which one of the following situations involves potential energy changing into kinetic energy.
A moving ball being caught
An airplane landing at an airport
A child kicking a ball that is standing still
A car coming to a stop
Identify when an airplane has kinetic energy.
When it takes off
When it is flying
When it has landed
Identify an example of gravitational potential energy is
A parked car
All moving objects
Any chemical
An object at height
According to the law of conservation of energy, energy can be created or destroyed.
True
False
Identify the energy transfer
chemical to kinetic
solar to electrical
thermal to light
electrical to light
What is this diagram called?
Stankey Diagram
Sankey Diagram
Sankay Diagram
Samkay Diagram
The energy efficiency shown in this diagram is:
About 10%.
About 30%.
About 60%.
Impossible to tell.
A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?
5%
50%
55%
100%
An iPhone charger coverts 75J of electricty in to 50J of charge and 25J of thermal energy. How efficient is the charger?
10%
100%
33%
67%
Calculate the useful energy output for a light bulb when total energy input is 3000 J and it has an efficiency of 32%.
(a)
Calculate the useful energy output for a toaster when total energy input is 51230J and it has an efficiency of 60%.
(a)
Calculate the useful energy output for a buzzer when total energy input is 8700 J and it has an efficiency of 3%.
(a)
Calculate the total energy output for a light bulb which has an efficiency of 32% and produces 960 J of useful energy.
(a)
Calculate the total energy output for a buzzer which has an efficiency of 3% and produces 261 J of useful energy.
(a)
Calculate the efficiency of a device which was supplied with 60000 J of energy and generated 13800 J of useful energy.
(a)
Calculate the efficiency of a toy car which was supplied with 80000 J of input energy and generated two different forms of energy, including 12800 J of thermal energy.
(a)
Calculate the efficiency of a toaster which was supplied with 51230 J of input energy and generated two different forms of energy, including 30738 J of thermal energy.
(a)
