unit 2 chapter 6–light. do you know? chapter 6 ‒ light pp. 114-115 what is a straight line of...
TRANSCRIPT
UNIT 2
Chapter 6–Light
Do you know?
Chapter 6 ‒ Light pp. 114-115
• What is a straight line of light called?• What is a luminous object?
Words To Know
a straight line of light
ray
Chapter 6 ‒ Light p. 114
Words To Know
can make light on its own
luminous
Chapter 6 ‒ Light p. 114
Words To Know
cannot make its own light
nonluminous
Chapter 6 ‒ Light p. 115
Do you know?
Chapter 6 ‒ Light pp. 116-117
• What is a translucent substance?• How are opaque objects different from
transparent objects?
Words To Know
allows light rays to pass through it
transparent
Chapter 6 ‒ Light p. 116
Words To Know
allows some, but not all, light rays to pass through it
translucent
Chapter 6 ‒ Light p. 116
Words To Know
does not allow any light rays to pass through it
opaque
Chapter 6 ‒ Light p. 117
Chapter 6 ‒ Light p. 117
1. What is a ray?
a straight line of light
Chapter 6 ‒ Light p. 117
2. What is a luminous object?
an object that can make light on its own
Chapter 6 ‒ Light p. 117
3. What kind of substance does not allow any light rays to pass through it?
an opaque substance
Do you know?
Chapter 6 ‒ Light pp. 118-119
• What causes a shadow?• How long is your shadow at noon?
Words To Know
a dark shape caused when an object blocks light
shadow
Chapter 6 ‒ Light p. 118
Chapter 6 ‒ Light p. 119
1. What is a shadow?
a dark shape caused when an object blocks light
Chapter 6 ‒ Light p. 119
2. If a shadow is on the right side of an object, where is the light source?
on the left side
Chapter 6 ‒ Light p. 119
3. Is your shadow longer at noon or at 6:00 p.m.?
at 6:00 p.m.
Do you know?
Chapter 6 ‒ Light pp. 122-123
• What are all the colors that make up light called?
• Why does a red hat look red?
Words To Know
all the colors that make up light
visible spectrum
Chapter 6 ‒ Light p. 122
Words To Know
the bouncing of light off an object
reflection
Chapter 6 ‒ Light p. 122
Do you know?
Chapter 6 ‒ Light pp. 124-125
• What is refraction?• What tools refract light?
Words To Know
the bending of light as it passes from one substance to another
refraction
Chapter 6 ‒ Light p. 124
Words To Know
a transparent material used to bend light
lens
Chapter 6 ‒ Light p. 125
Chapter 6 ‒ Light p. 125
1. What is the visible spectrum?
all the colors that make up light
Chapter 6 ‒ Light p. 125
2. What colors does a blue shirt absorb?
all the colors except blue
Chapter 6 ‒ Light p. 125
3. What is refraction?
the bending of light as it passes from one substance to another
Do you know?
Chapter 6 ‒ Light pp. 126-127
• What is the pupil?• What path does light take through the
eye?
Do you know?
Chapter 6 ‒ Light pp. 128-129
• What is nearsighted vision?• Does a convex lens bend light inward or
outward?
Chapter 6 ‒ Light p. 129
1. What part of the eye focuses light?
the lens
Chapter 6 ‒ Light p. 129
2. What determines whether a person has normal vision or not?
where the lens focuses light
Chapter 6 ‒ Light p. 129
3. What kind of lens bends light inward?
a convex lens
Key Ideas
• We need light to see.• Light rays travel in straight lines. • Light and heat are related to each other.• The location of a light source can be
determined by an object’s shadow.
Chapter 4 ‒ Forces and Machines p. 132
Key Ideas
• The colors we see are the result of light that reflects off objects.
• Some lenses are used to correct where the eye focuses an image.
• God designed the parts of the eye to focus images by receiving and bending light.
Chapter 4 ‒ Forces and Machines p. 132