E. Choose and write the letter of the correct answers
1. All of the following are producers of light EXCEPT
A fire
B. light bulb
C. moon
D. Sun
2. Mirror will most likely cause light to
A. bounce off or reflect
C. refract or bend
B. move in waves
D. pass through
3. Light travels in
A. waves around the planet
C. straight lines until it strikes matter
B. curve line until it strikes matter
D. crooked lines until it strikes matter
4. It is an example of an object that reflects light.
A. mirror
B. plastic bottle C. wooden wall D. your face
5. Light is different from sound energy because it can
A. bounce off objects
C. travel through matter
B. travel around matter
D. travel through empty space
6. The loudness and softness of sound is called
A. amplitude B. pitch
C. sound wave D. volume
7. If the frequency of the vibrations increases then,
A. the sound echoes
C. the sound gets louder
B. the pitch increases
D. the volume decreases
8. The sound waves cannot travelin
A. gases
B. liquids
C. solids
D. Vacuum
9. As the frequency of sound wave increases, the wavelength
A. decreases B. fluctuates
C. increases D. stays the same
10. If a sound's pitch is high, its source is
A nearby
B. an echo
C. a sonic boom D. vibrating quickly
F. Draw a check mark (v) if the illustrations show reflection or a cross mark if they show​