Which of the following is made from a wheel and a rope ?
Pulley
Lever
axle
Screw
Which help us to walk ?
Friction
Inertia
Collision
None of these
Small tools are called
Force
Simple machines
Work
Energy
Forces can change the ____________ of things
Smell
Speed
Quantity
If the two _____________ forces are equal the object remains stationary.
Frictional
Opposing
Same
What is needed to move light things?.
Weak force
Strong force
Negative force
Which one is example for simple machines?
Chair
Both a & b
Which one is example of wheel and axle?
Steering wheel
Pedal
Screwdriver
All of these
Which can be used to push or pull something ?
Velocity
Length
Breadth
Which makes machine less efficient ?
Gravitation
