Which force helps us to walk without slipping?

Why does a ball come down after being thrown up?

What happens to a shadow when the light source moves closer?

Which simple machine is used in a see-saw?

Why do we feel cold after sweating?

What does a thermometer measure?

We use oven mitts (gloves) to hold a hot pan because they are:

Which force stops a moving bicycle when brakes are applied?

Why do objects look bigger when seen through a magnifying glass?

What type of energy does a moving fan have?