Light Flashcards
1
Q
What does light travel in?
A
Straight lines
2
Q
What can the rays be
A
Converging
Diverging
Parallel
3
Q
What gives evidence that light travels in straight lines
A
Shadows
Pinhole camera
Light in a laser beam
4
Q
What does the image look like when you look through a pinhole camera
A
Upside down ( inverted )
The image is dimmer than the object
The image is smaller
The image gets bigger the closer it is to the light
5
Q
What would you to to solve this? Light travels at 300,000 km/s. it takes light 8.33 mins to reach Earth from the Sun. Work out how far away the Sun is
A
You would do: 300,000x8.33 ( 2,499,000 )
