S3 Practice

Which box has a higher density?  

• Box A
• Box B
• cannot be determined
• they are the same

Water pressure increases as depth increases. 

• True
• False

The term fluids generally applies to:

• solid and liquid

• liquid and gas

• solid and plasma

• water only

These statements are about the particle model of matter. Which one is not correct?

• Liquids are hard to compress because their particles are very close together

• Gases expand to fill their container because there are only weak forces between the particles

• Liquids can flow because there are only very weak forces between the particles

• Solids have a fixed shape because there are very strong forces between the particles

Density is:

• the weight of a fixed mass of something.

• the volume of a fixed weight of something.

• the weight of a fixed volume of something.

• the mass of a fixed volume of something.

Light bending when goes through different mediums is called ________.

• reflection
• absorbtion
• refraction
• mirage

When light passes from one transparent medium to another, it changes speed. When light changes speed, it changes direction. This change of direction, or bending, is called refraction.
 True or false

• True
• False

This diagram best represents

• reflection

• refraction

• absorption

• dispersion

What happens when light hits an object you can see?

• The light turns corners.
• The light curves around the object.
• The object reflects the light.
• The light and the object do not form a shadow.

The Law of Reflection:
The angle of incidence is _________ the angle of reflection

• bigger than
• the same as
• smaller than