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Worksheetsscience form 2 chapter 8 force
Total questions: 59
Worksheet time: 3575secs
Force is a ______________ or a ________________ .
energy , pull
push , pull
movement , static
kinetic energy , potential energy
Force is a vector quantity that has _____________________ and
direction ________________.
magnitude , pull
magnitude , direction
pull , magnitude
energy, line
Newton’s Third Law states that for every
action force, there is a _____________________ of
the same magnitude but in the opposite
direction.
upthrust force
down force
reaction force
motion force
Due to the differences in temperature and
concentration of salt, the density of sea water is
different in different parts of the world. ______________ lines will help to determine the safe level for a ship to stay afloat.
Plumsoll
Plimmsil
Plimsoil
Soilplim
Based on the diagram the lever system is the ____________________________
first class lever system
second class lever system
third class lever system
A force acting on an object can rotate the object at a fixed point (pivot or fulcrum). The turning effect is called the ____________________________________.
turning force
moment of force
lever second class
When the air temperature in a closed container
increases, the air particles move faster. This causes the air particles to collide with the walls of the container _________________________________ with a greater force.
less frequently
more frequently
decreases
The illustration shows forces acting on a box.
What is the net force on the box if the sliding friction between the box and the floor is 5N?
5N to the left
8N to the right
13N to the right
zero net force
Riding a bicycle produces several forms of energy. Which form of energy is produced in the GREATEST amount by pedaling a bicycle down the sidewalk?
chemical
radiant
kinetic
sound
Angela has a toy made out of a coil of wire. She places the toy at the top of some stairs. The toy can travel down each step, end-over-end.
Which type of energy does the toy have when it is placed at the top of the stairs?
electric
kinetic
magnetic
potential
Rodger pushes his skateboard across a sidewalk. If the sidewalk is level, which would MOST likely make the skateboard lose its kinetic energy?
friction
heat
magnetism
temperature
A spring balance can be used for measuring force.
True
False
The fulcrum is located between the effort and the load.
First class lever
Second class lever
Third class lever
The effort is located between the fulcrum and the load.
First class lever
Second class lever
Third class lever
The load is located between the fulcrum and the effort.
First class lever
Second class lever
Third class lever
As the depth of a liquid increases, the water pressure ______________.
decreases
increases
The higher the altitude is, the _________ the atmospheric pressure is.
lower
higher
A simple machine that consists a rigid bar that pivots on a fixed point
lever
pulley
wheel and axle
fulcrum
What class lever is a nutcracker?
1st
2nd
3rd
What class lever is a fishing rod?
1st
2nd
3rd
The diagram shows a type of lever. Identify J, K and L.
J: Effort ; K: Load ; L: Fulcrum
J: Load ; K: Fulcrum ; L: Effort
J: Fulcrum ; K: Load ; L: Effort
J: Fulcrum ; K: Effort ; L: Load
Diagram shows Airin and Ammar sitting on a see-saw. The weight of Airin is 300 N while Ammar is 400 N. What is the distance of Ammar from the fulcrum so that the see-saw is balanced?
1 m
2 m
3 m
4 m
A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?
450 N
350 N
4.5 N
200 N
A uniform plank is pivoted at its mid-point and a weight is added on either side in the positions shown. The plank is balanced by the upward 2 N force. What is weight X?
4.0 N
6.0 N
10 N
12 N
What causes the balloon to expand and deflates?
(a)
Which activity to show that air exerts pressure?
What is device used to measure air pressure?
Spring Balance
Bourdan Gauge
Van de Graaff Generator
Electroscope
What are the factors that can affect air pressure?
Surface Area
Volume
Temperature
Weight
What is the relationship between volume of air and air pressure?
Volume increases, Air Pressure (a)
Tick the correct application of air pressure in our daily life
Tick the correct application of air pressure in our daily life
Identify the correct pressure at A and B
A - High Pressure ; B - Low Pressure
A - Low Pressure ; B - High Pressure
Where could a hole be made to enable the water to be sucked up ?
P
Q
R
S
The pressure inside the balloon will:
Decrease
Increase
Remain the same
Not enough information to formulate an answer
What holds a card on an inverted cup of water held in the air?
A seal forms between the card and the jar.
A vacuum forms, sucking the card in and holding it to the jar.
The air below the card exerts the pressure upwards
The gravity of the water is pulling on the card.
Identify the correct pressure at A and B
A - High Pressure ; B - Low Pressure
A - Low Pressure ; B - High Pressure
Air pressure inside the syringe becomes lower when the plunger is pulled up because ..
air is sucked out from the syringe and becomes semi vacuum
volume of air inside the straw becomes larger
volume of air inside the straw becomes smaller
We can make dented ping pong ball returns to its original shape by immerse it in a ...
(a)
What cause partial or semi vacuum in the rubber sucker when it is pushed into the surface of the wall?
half of the air is forced out from the rubber sucker
all the air is forced out from the rubber sucker
volume of air inside the rubber sucker becomes smaller
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
Which sentence is the MOST RIGHT fit for this image?
Flat shoes are better than heels.
Pressure distribution is less for flat shoes.
In muddy area, it's not a good idea to wear heels.
Less the area, less is the pressure. So heels create less pressure.
If an object's surface area is smaller does it create more or less pressure?
More
Less
The same
What is pressure?
The amount of force exerted on a surface
The surface area of an object
The weight of an object
If you're walking in snow why would you wear boots instead of high heels?
Because boots have a higher surface area making the pressure less and stopping you from sinking.
Because it's more comfortable
No, high heels are better
Which situation produces more pressure on the floor?
standing on one foot
standing on two feet
standing on four feet
all produce the same pressure
