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WorksheetsMore About Force, Energy and Simple Machines
Total questions: 16
Worksheet time: 3mins
________is an example of inclined plane.
Pulley
Wedge
Ramp
Both b and c
A ______ is a grooved wheel with a rope running along the groove.
Lever
Pulley
Screw
Inclined plane
A simple machine that is made up of an inclined plane wrapped around a cylinder. It is often used to hold things together.
Lever
Inclined plane
Screw
Wedge
Staircase is an example of _______
Wedge
Pulley
Wheel and axle
Inclined plane
Above figure is an example of
1st class lever
2nd class lever
3rd class lever
none
What type of simple machine is this?
Wheel and axle
lever
Pulley
Inclined plane
What type of energy causes ice cream to melt?
Heat
Light
Electrical
Geothermal
Photosynthesis and Solar panels use this form of energy.
Mechanic
Light
Thermal
Sound
What type of energy we get from the food we eat?
Chemical
Light
Thermal
Sound
How does friction affect speed?
more friction decreases speed
less friction decreases speed
more friction increases speed
None of these
Friction is a force that acts in an ___________ direction of movement.
Similar
Parallel
Opposite
West
Kinetic energy is _______
Energy stored in food
Energy of a stone kept at a point
Energy of a moving vehicle
Energy of an inflated balloon
3 types of force are
wind ,sand and storm force
heat, light and sound
muscular force, frictional force and mechanical force
ELASTIC FORCE means
•Ability of materials to return to its
original shape after being
stretched or compressed, is called
elasticity.
•The force produced by a machine is
also called mechanical force.
none
2 ADVANTAGE OF FRICTIONAL FORCE
. Friction makes its difficult to move heavy things across the floor.
• Friction cause sole of shoes, the surface of tyre and moving parts of machines to wear out.
. Friction help us to walk.
• Helps us to hold things.
