8J Light

Which of these statements is true?

• Light travels in straight lines

• Light is stopped when it meets a solid object

• Light does not travel in straight lines

• Light will only travel for about 2000 km before it stops

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NGSS.MS-PS4-2

Which of these statements is not true?

• Opaque objects reflect or absorb light

• Transparent objects let light pass through them

• Translucent objects scatter the light that passes through them

• Translucent objects do not reflect light

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NGSS.MS-PS4-2

Which phrase best completes the following sentence? We can read a book because:

• it is luminous

• a light shines on it

• light is reflected by the book and enters our eyes

• light from our eyes shines on the book

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NGSS.4-PS4-2

Which statement is true?

• Sound travels faster than light

• Light does not travel. It is either on or off

• Light travels faster than sound

• Light and sound travel at the same speed

Which of these statements is true?

• Light bounces evenly off rough surfaces

• Light bounces evenly off smooth surfaces such as mirrors

• Light bounces off mirrors in all directions

• Light does not bounce off mirrors

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NGSS.MS-PS4-2

A plane mirror is:

• a flat mirror

• a curved mirror

• a shiny mirror

• a mirror used in aeroplanes

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NGSS.MS-PS4-2

How big will the angle of reflection be?

• 20°

• 40°

• 30°

• 60°

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NGSS.MS-PS4-2

Your image in a mirror:

• is always smaller than you

• is upside down

• is always bigger than you

• seems to be behind the mirror

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NGSS.MS-PS4-2

Refraction is what happens when light:

• hits an opaque object

• bounces off a mirror

• is scattered unevenly by a rough surface

• changes direction as it goes from one substance into another

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NGSS.MS-PS4-2

Refraction occurs because:

• light speeds up when it goes from air to glass or water

• light slows down when it goes from air to glass or water

• light stops when it goes from air to glass or water

• light reflects inside transparent materials

Tags

NGSS.MS-PS4-2