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WorksheetsSCIENCE 8 REVIEW TEST
Total questions: 40
Worksheet time: 6mins
What formula should be used in finding work if an angle is involved?
W=Fd
W=Fcosθd
Which of the following statements is FALSE about power?
Power is a time-based quantity.
The unit of power in Newton-meter.
Power refers to how fast work is done.
The standard unit of power is the Watt.
Which of the following is the unit for Force?
m
s
N
J
Which of the following quantities is not involved in work?
Force
Mass
Distance
This Law states that the force acting on an object is equal to the product of it's mass and acceleration.
First law
Second law
Third Law
The unit “Watts” was named after _________.
James Watt
John Watt
Johann Watt
Charles Watt
Watts is also equivalent to _______________.
Kg. m/s^2
Kg. m^2/s^2
kg.m^3/s^2
Kg.m/s
Newton or “N” is also equivalent to __________.
Kg. m/s^2
Kg. m^2/s^2
kg.m^3/s^2
Kg.m/s
It is equal to the work done divided by the time in which the work is done.
Power
Energy
Force
Friction
The unit “Joule” is named after ______________.
James Prescott Joule
John Prescott Joule
Jay Prescott Joule
Johann Prescott Joule
Everything that moves has what form of energy?
Kinetic
Motion
Friction
Potential
It is the ability to do work.
Work
Power
Energy
Force
It is an energy stored in an object at rest.
Kinetic
Motion
Friction
Potential
It is the rate of doing work.
Energy
Power
Work
Force
What is the SI unit of Power?
Joule
Watt
Kg. m/s^2
m/s^2
What is the other name for the second law of motion?
Law of Inertia
Law of Interaction
Law of Acceleration
Law of Gravitation
The law of inertia applies to ____________ objects.
Only moving objects
Objects at rest
Both moving and non-moving
None of these
Which formula represents the Law of Acceleration?
F= ma
F=m/a
V=d/t
d=vt
A ball at rest will stay at rest unless an outside force is acted upon it, what law of motion best describes the given situation?
Law of Inertia
Law of Action-Reaction
Law of Acceleration
None of the above
Who is the scientist that formulated the three laws of motion?
Isaac Newton
Albert Einstein
Aristotle
Galileo Galilei
What law states that for every action, there is always an equal opposite reaction?
Law of Inertia
Law of Interaction
Law of Acceleration
Unit of mass
m/s^2
newtons
m/s
kg
A type of reflection that occurs on smooth surfaces is called _______.
Diffuse Reflection
Specular Reflection
A category of wave which needs a medium to travel is called _____.
Mechanical waves
Electromagnetic waves
Light wave is an example of ________.
mechanical wave
electromagnetic wave
The bending of a wave as it moves around an obstacle or passes through a narrow opening.
Reflection
Refraction
Diffraction
Interference
What happens to the speed of sound when it enters different mediums, from gas to liquid?
slower
faster
remains unchanged
A type of object that absorbs or reflects all light.
Transparent
Opaque
Translucent
Bending of waves when passing from one medium to another
Refraction
Interference
Diffraction
Reflection
It is the bouncing back of the wave as it strikes an object.
Diffraction
Reflection
Refraction
Interference
What is the unit of frequency?
m/s
Hz
s
decibels
Medium vibrates perpendicular to the direction of wave motion. What type of wave is being described?
Transverse
Longitudinal
Rhythmic disturbances that carry energy through matter or space
Pulse
Wave
Amplitude
Wavelength
If the surrounding is hot the sounds travels faster.
True
False
A region in a longitudinal wave where the particles are closest together while a rarefaction is a region where the particles are farthest apart.
Compression
Rarefaction
Waves that are usually created by pulling and pushing the material or medium just like in the slinky or spring are called ________.
Transverse
Longitudinal
Mechanical
Electromagnetic
Which of the following is not capable of transmitting sound?
Air
Water
Steel
Vacuum
Which of the following would be most likely transmit sound the best?
Water in the ocean
Steel in the cabinet
Water in a swimming pool
Air in your classroom
Sound wave travel fastest in __________.
Vacuum
Air
Liquids
Solids
This refers to Force multiplied to displacement.
Work
Power
Energy
Force
