Heat, light and electricity

Heat is a means of transferring energy between two bodies that are at different:

• Temperatures

• Changes

• Sizes

• Melting

The temperature is measured by a:

• Calendar

• Water

• Reflection

• Thermometer

Heat can change in bodies size as well as state.

• True

• False

There are two light sources: natural and material.

• True

• False

The characteristics of light are:

• Light changes in state: solid, liquid and gas.

• Light have static electricity and current electricity.

• Light travels in a straight line, in all directions and at great speed.

According to what they do to light, we classify materials as:

• Solid, liquid and gas materials.

• Transparent, translucent and opaque materials.

• Reflection, refraction and lenses materials.

This materials do not allow light to pass through them:

• Opaque.

• Transparent.

• Translucent.

What 2 types of electricity are there?

• Thermal and Kinetic.

• Static and Current.

• Positive and Negative.

Static electricity is a type of electricity that makes a body attract or repel other bodies.

• True.

• False.

How do materials with different charge (one + and one -) react?

• They attract each other.

• They repel each other.