Force, Work & Energy Worksheet-13
True or False
Moving heavy objects become easy with the help of a wheel and axle.
An inclined plane is a sloping surface.
A simple smooth board placed at an angle can be used as an inclined plane.
An inclined plane is used to push or pull heavy objects to a certain height.
A pair of scissors is an example of lever.
Piston is an example of lever.
Heavy cartons can be loaded onto a truck by pushing the carton up an inclined board.
A screw is actually an inclined plane wrapped around a cylinder.
Force, Work & Energy Worksheet-14
True or False
Piston is an example of an inclined plane.
A screw has a blunt end.
Wheel is turned with the help of a screwdriver.
Wedges rotate as they move forward.
Lever helps to attach things to each other.
A screw has a sharp pointed end.
Turbines move and help produce electrical energy.
Screws are turned with the help of a screwdriver.
Screws rotate as they move forward.
Force, Work & Energy Worksheet-15
True or False
A wedge has at least one slanting surface ending in a sharp edge.
A wedge helps to cut things.
Energy is the ability to do work.
Energy changes easily from one form to another.
Magnetic energy is a type of energy.
The main source of all energy on Earth is the sun.
Plants use solar energy to make food in the green leaves.
Food made by plants has energy stored in the chemical form.