Porter 5g Science 2nd 9w Review 3 and 4 combined

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

Which surface has more friction: carpet or tile?

Back

Carpet has more friction than tile.

Front

What is the easiest size for a magnet to hold?

Back

A small object is the easiest for a magnet to hold.

Front

How does wind affect a bike rider's speed?

Back

A bike rider goes fastest when the wind is blowing at their back.

Front

What type of energy transfer occurs when a fan blows air?

Back

The energy transfer is Mechanical to Mechanical.

Front

What provides the energy needed for evaporation?

Back

The sun provides the energy needed for evaporation.

Front

What is mechanical energy?

Back

Mechanical energy is the energy associated with the motion and position of an object.

Front

What is the role of the sun in the water cycle?

Back

The sun provides energy for processes like evaporation and condensation in the water cycle.

Front

What happens to a magnet's strength as the distance from the object increases?

Back

The strength of a magnet decreases as the distance from the object increases.

Front

What is the effect of surface texture on friction?

Back

Rough surfaces create more friction than smooth surfaces.