WorksheetsScience8-Review
Total questions: 20
Worksheet time: 7mins
Which law of motion explains the relationship between the force applied to an object and its rate of change in velocity?
acceleration
friction
gravity
inertia
When a heavy football player and a light one run into each other, who exerts more force?
They are equal
There is no such thing as force
The light one
The heavy one
Which of the following is the BEST example of potential energy?
apple on a table
rolling ball
running horse
diving man
Which one has more kinetic energy and why? A volleyball or a soccer ball?
A volleyball because it has more mass
A soccer ball because it is bigger
A soccer ball because it has more mass
A volleyball because it is smaller
Which is the ability to do work?
friction
energy
conversion
velocity
What happens to the speed of sound as the temperature decreases?
Speed becomes velocity
The speed decreases
The speed increases
The temperature has no effect
What does reflection mean?
Bouncing back of light
absorption of light
bending of light
all of the above
Which BEST describes a prism?
makes a beam of light brighter
makes UV light visible
measures the speed of light
separates visible light into different colors
What color in the visible spectrum has the most energy?
indigo
blue
red
violet
What is heat?
It is the internal energy that flows from hot to cold
It is the temperature
It is the radiant energy
It is the internal energy
Which is the SI unit for temperature?
Kelvin
Meter
Calories
Celsius
Which of the following safety devices protects human beings from electrocution?
circuit breaker
transformer
earth or ground wire
fuse
Which is NOT a description of a series circuit?
total resistance increases with increasing load
components are connected along a single path
if one component burns current stops flowing through the rest of the components
components are connected along in multiple parts called branch
Why is a blue dress appears blue?
It reflects white light.
It absorbs white light.
It reflects blue light.
It absorbs blue light.
What is the proper sequence of arrangement of colors of the visible light?
red, yellow, violet, green, orange, blue, indigo
red, orange, yellow, green, blue, indigo, violet
red, yellow, orange, blue, violet, indigo, green
red, orange, yellow, green, violet, indigo, blue
What is temperature?
It is the ability to do work.
It is the substance's chemical energy.
The degree or intensity of heat in a substance or object
It is the substance's potential energy.
Which is used to measure the temperature?
Thermometer
Platform balance
Funnel
Graduated cylinder
What is the measure of energy flow due to temperature difference between objects?
motion
temperature
energy
heat
Which is the rate at which charge flows through a surface?
resistance
circuit
voltage
current
Which is NOT a description of a series circuit?
components are connected along in multiple parts called branch
if one component burns current stops flowing through the rest of the components
components are connected along a single path
total resistance increases with increasing load
