physics friction

Friction is a force that acts in the ______ direction of the intended motion of an object.

• Same

• Parallel

• Opposite

• Northern

• All of the above

In which case friction is a disadvantage?

• Writing

• Running

• In Racing Cars

• Walking in New shoes

• Friction is always a disadvantage.

Advantages of friction are:

• It helps to move around.

• It helps us to push objects

• It helps us to write.

• It helps us to conserve energy.

Friction changes the energy of an object from kinetic energy to _____ energy.

• Electric

• Stored

• Solar

• Heat

• Wind

In what way can friction be reduced?

• Using grease

• Using a wheel

• Using a ball

• Using Oil

• All of the above

True or False: Different types of surfaces create different amounts of friction.

• True

• False

The measurement of the amount of friction a surface will generate is called the '______ of friction'.

• Callibration

• Coefficient

• Smoothness

• Description

• Fact

A bowling ball on a bowling lane is an example of what type of friction?

• Dry Friction

• Static Friction

• Fluid Friction

• Rolling Friction

• None of the above

In what way does friction help us in our everyday life?

• Brakes on a car

• Standing up

• Climbing a hill

• Skiing down a slope

• All of the above

True or False: Friction can generate static electricity.

• True

• False