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Worksheetsforces and pressure
Total questions: 60
Worksheet time: 5hrs 0mins
A rocket has been fired upwards to launch a satellite in its Orbit name the forces acting downwards on the rocket immediately after leaving the launching pad
Propelling force of gases emitted by combustion of fuel
magnetic force of Earth
gravitational force of Earth
no force acting downwards
SI unit of force is
Pascal
Newton
Pascal/second
Newton/second
which of the following is a contact force
magnetic force
Electrostatic force
Gravitational force
Friction force
a liquid can exert pressure on the side of container as well as at the bottom of the container
True
False
When two equal forces are acting on an object in opposite direction object will not move from its place
True
False
S.I unit of mass is------
Meter
Joule
Kilogram
Gram
Let's say that the box in the picture will move. And it will move in the right direction. This is happening because-
Both the men are pushing it towards right.
Both the push and pull are in the opposite direction.
Both the push and pull are in the same direction.
A push moves things _______ .
Close to you
Away from you
A pull moves things _______ .
Close to you
Away from you
When you increase your depth under water, the water pressure on your body
increases
decreases
stays the same
What happens if forces are balanced?
The object will move left
The object will move right
The object will keep moving at the same speed in the same direction
The object will keep moving in the same direction but slow down
What is air resistance?
A type of force
A type of friction
A type of magnet
A type of truck
Which is not a simple machine?
Pulley
Screw
Wedge
Spring
Which is an example of someone using a simple machine to do work?
A boy runs across the field
A girl eats her sandwich
A banker counts money
A man pushes his trolley up the ramp
How can the lever be balanced?
Add weight to the right side
Move fulcrum right
Add weight to the left side
Move the heavier weight back
What are the three part of a lever?
Fulcum, Effort, Weight
Effort, Fulcrum, Resistance
Load, Effort, Fulcrum
What is a Fulcrum?
The fixed point that the lever turns on, or is supported by. It is where movement stems from.
The weight or resistance
The force needed to create the movement
What is a Load?
The fixed point that the lever turns on, or is supported by. It is where movement stems from.
The weight or resistance
The force needed to create the movement
What is a Effort?
The fixed point that the lever turns on, or is supported by. It is where movement stems from.
The weight or resistance
The force needed to create the movement
The nutcracker is the example of .......................
First Class of lever
Second Class of lever
Third Class of lever
Fourth Class of lever
Lower altitudes have
lower air pressure
higher air pressure
no air pressure
High altitudes have
lower air pressure
higher air pressure
no air pressure
Pressure rxerted by air on the earth's surface
Pressure
Atmospheric pressure
Heat pressure
What are the factors that can affect air pressure?
Surface Area
Volume
Temperature
Weight
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
Identify the correct pressure at A and B
A - High Pressure ; B - Low Pressure
A - Low Pressure ; B - High Pressure
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 pair of scissors?
1st
2nd
3rd
What class lever is a pair of pilers?
1st
2nd
3rd
What class lever is a nutcracker?
1st
2nd
3rd
What class lever is a fishing rod?
1st
2nd
3rd
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What class lever does this picture show?
1st
2nd
3rd
What class lever does this picture show?
1st
2nd
3rd
What class lever does this picture show?
1st
2nd
3rd
Which of the levers would be the easiest to lift the load?
A
B
C
