Force and Motion

A force can increase or decrease the _____ of a motion.

Which of the following is an example of rectilinear motion?

The movement of a body on its own _____ is called rotation. 

Motion of the wiper of vehicles is an example of _____ motion.

(Choose from the following: Rectilinear/ Oscillatory)

_____ is needed to apply a force.

A push or a pull applied on an object can change _____.

A force can change the _____ of an object.

(Choose from the following: shape/ mass)

Unscramble the following word to make a meaningful word:
EOFRC.       
 

Which among the following cannot be changed by force?

The force of friction tries to stop a body from moving.

The force of _____ opposes movement.

Immerse a stone gently into a glass beaker containing water. Write here what you have noticed.

The force of friction pulls an apple from a tree down to the ground.

Make a list of any five games that you play in school and at home. Now fill in the following table. One has been done for you. 

Name the simple machine used to do following work:

Moving a heavy rock from its place

Name the simple machine used to do following work.

Opening a bottle of jam

Name the simple machine (wheel and axle or lever) used to do the following work.  

Running roller skates

A _____ is made up of two inclined planes.

Friction cannot cause wear and tear in a machine.  

Push or pull of any kind is called _____.