Forces that are equal in size and opposite in direction and do not cause motion are called?

Magnetic force is the ............. and ........... forces of magnets

Force and weight are both measured in ...............

It is exerted without the affected objects being in contact with each other .

When like poles of two magnets face each other, they..........each other. This is a ...........

A force that slows down moving objects in the air.

The rougher the surface, the ............ the friction

Friction makes it easier for us to move things.

This type of force causes water droplets that are formed high in the sky to fall as rain.

Which surface had the greatest amount of friction?

A bird needs to overcome ................. in order to fly.

................ slows down the movement of the falling parachute.

This type of force enables us to walk and hold objects firmly.

It is the amount of substance in an object.

It is the force exerted by the Earth on all objects

Units of mass

The weight of an object depends on its .......... and ...........

If my mass on Earth is 57 kilograms, what will be my mass on the moon?

You will weigh less on the moon because the gravity is less than that of Earth.

Which of the following does not belong to the group?

Objects with greater mass will have lesser weights.

The measure of the force of gravity on an object.

The force exerted by rubber bands and springs.

Two students drag a block across a sandpaper. What will happen as they add blocks?