WorksheetsREVIEW in SCIENCE 8
Total questions: 20
Worksheet time: 7mins
It is defined as either a push or a pull. A vector quantity that causes object to move or move faster.
energy
motion
force
work
Ben push the a cart 10 units to the left then Ken pushes again the cart for another 5 units towards the same direction. What is the net force of the cart?
10 units
15 units
20 units
30 units
Carrying a sack of rice involves what type of force?
applied force
frictional force
gravitational force
elastic force
Which of the following shows a non-contact force?
Pushing a cart
Carrying a basket
Apple falling from a tree
Pulling a door
Balanced force is when object ...
moves faster
moves slower
moves the same speed
is at rest
The force that governs and holds the planets in place around the sun.
gravitational force
applied force
normal force
magnetic force
You are riding a bus while standing and then it suddenly moves forward. What will probably happen to you?
you will move backward by law of inertia
you will move forward by law of acceleration
you will move backward by law of inertia
you will move forward by law of inertia
The cart moves faster when you push it with your friends than you push it alone. What does this show?
acceleration is directly proportional to the force
acceleration is inversely proportional to the force
acceleration is directly proportional to the mass
acceleration is inversely proportional to the mass
Which has more inertia a tricycle or a van?
Tricycle
Van
Both of them
None of them
In which situation is there work done on the system?
Arsen carrying a sack of rice across the street.
Nicole pushing a grocery cart full of grocery items.
Justine carrying his bag over his shoulder while walking.
Stephanie carrying a glass with a lighted candle overhead.
How will you describe the kinetic energy and potential energy of the
roller coaster while it’s on the top of its track?
the kinetic energy is highest; the potential energy is zero.
the kinetic energy is zero; the potential energy is highest.
the kinetic energy is equal to the potential energy.
the kinetic energy and potential energy is zero.
Why can't you hear sounds when you are in the outer space?
low frequency sound is produced if you are in the outer space
sound needs a medium to propagate
there are too many high frequency sound in the outer space so
we can’t hear each other
sound waves can only travel on earth
In which material does sound travel the fastest?
gold
rubber
water
air
All of the following are properties of light EXCEPT.
Light travels even through a vacuum.
Light travels the fastest.
Light is a longitudinal wave just like sound.
Light bends when it enters another medium.
From top to bottom, which is the correct arrangement of the colors of the
rainbow?
violet, indigo, blue, green, yellow, orange, red
red, orange, yellow and blue, green, indigo, violet
blue, yellow, orange, green, red, violet, indigo
red, orange, yellow, green, blue, indigo, violet
There are 2 containers having different mass of hot water. Container A
has 50 ml and Container B has 100 ml. Both containers have the same
temperature reading of 500C. Which has more heat?
Container A
Container B
Both of them
None of them
A device that is used to measure the amount of heat of a substance
pyrometer
thermocouple
calorimeter
barometer
Why does water in refrigerator turn to ice?
heat is absorbed
heat is released
heat is preserved
heat is converted to mass
A type of current that shows the movement of electrons in one direction.
Alternating Current
Straight Current
Direct Current
Single Current
A type of electric device with a thin metal strand that burns and automatically detach in the presence of short circuit.
Insulator
Circuit Breaker
Grounding
Fuse
