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Worksheetspractice for finals.
Total questions: 52
Worksheet time: 1hrs 11mins
Definition of motion
An object travels 100 m North then 50 m South. What total distance did it travel?
150 m
50 m North
50 m South
150 m North
The momentum of an object depends upon the object's ___________&_____________.
size and shape
mass and speed
mass and veloctiy
mass and energy
You are calculating the momentum of a 2 kg toy car moving along the sidewalk at a speed of 0.5 m/s. What would happen to the momentum if you doubled the mass of the car?
You would double the momentum.
You would triple the momentum.
You would half the momentum.
The momentum would not change.
A roller coasters accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?
24 m/s2
18 m/s2
16 m/s2
16 m/s
The equation for acceleration is...
What is gravity?
A force that causes objects in motion to move in a curved path.
Any push or pull
The force of attraction between any two objects that have mass.
A substance that reduces friction between the moving parts of machines.
What is weight?
A substance that reduces friction between the moving parts of machines
The measure of the force of gravity on an object.
Any push or pull
The force of attraction between any two objects that have mass
An airplane taking off
Unbalanced force
Balanced force
A contact force is from
objects physically touching
far apart objects
not touching object
always a pull
A non-contact force is between
two objects that aren't touching
two objects that are touching
the ground and wheels
you and me
Friction is a
Contact Force
Myth
Non-contact Force
What is Newton's 2nd Law?
For every action there is an equal and opposite reaction.
Acceleration depends on two variables, the mass of the object and the amount of force.
What is Newton's 1st Law?
For every action there is an equal and opposite reaction.
An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.
What is Newton's 3rd Law?
For every action there is an equal and opposite reaction.
Acceleration depends on two variables, the mass of the object and the amount of force.
A 15kg object is accelerating of 3m/s Calculate the force acting on it.
(a)
Which of Newton's Law is the same as force formula?
Newton's first law
Newton's second law
Newton's third law
Energy of motion is which type of energy?
Kinetic
Potential
Electrical
Chemical
The ability to do work or cause change is known as...
Gravity
Work
Law of Conservation
Energy
_______ energy can be stored in food and fuels such as word or coal
mechanical
chemical
electrical
nuclear
"Energy can be transformed from one form to another, but energy cannot be created or destroyed." Which law is this?
Law of Gravitational Force
Law of Conservation of Mass
Law of Conservation of Energy
Newtown's Second Law
The sum of the kinetic and potential energy in a system is known as the system's _____________________ energy.
mechanical
chemical
thermal
combined
Can energy be destroyed?
Can energy be transformed
Select all the renewable energy source.
solar energy
Hydroelectricity
coal
oil
wind energy
select the non renewable energy source
coal
biomass
geothermal energy
natural gas
Nuclear energy
The Capital Letter A measures from the rest position to the top of the wave. What is this measurement called?
rarefaction
compression
wave height
amplitude
What does the lowercase letter (a) represent (highest point of this type of wave?)?
rarefaction
crest
trough
amplitude
What is the measurement from crest to crest on a transverse wave called?
all of these
amplitude
wave height
wavelength
The number of waves that pass a point in a certain amount of time is called ___________________________?
all of these
rarefaction
frequency
wave length
Wave speed is calculated using _____________ x _______________.
wavelength x wave height
frequency x wave height
frequency x wavelength
amplitude x wave speed
What is the frequency of a wave that has a speed of 24 m/s and a wavelength of 6 meters?
4 Hz
10 Hz
14 Hz
6 Hz
Which wave phenomenon makes it possible for a player to hear sound from a referee's whistle in an open field even when standing behind the referee?
diffraction
Doppler effect
reflection
refraction
Transverse waves have:
crests and troughs
troughs and rarefactions
compressions and contractions
rarefactions and crests
The measurement for Frequency is...
Cycle
Meters
Hertz
Seconds
All life on Earth requires Healthy Air and __________ .
Food
Shelter
Water
Soil
