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Worksheets

Enrichment Scince

Total questions: 25

Worksheet time: 15mins

Name
Class
Date
1.
As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's
a)
concussion. 
b)
amplitude. 
c)
reflection.
d)
frequency. 
2.
If the distance represented by the letter A were increased, how would it change the way the sound was heard?
a)
The sound would be higher. 
b)
The sound would be lower. 
c)
The sound would be softer. 
d)
The sound would be louder. 
3.
When comparing the two waves that are shown, how would Wave A (green wave) differ than Wave B (black wave)?
a)
Wave A and B have the same amplitude, but wave B (black) has a lower pitch.
b)
Wave A and B have the same amplitude, but Wave A has a lower pitch. 
c)
Wave A and B have the same pitch, but Wave A is a softer sound. 
d)
Wave A and B have the same pitch, but Wave B is a softer sound. 
4.
When a sound is louder what measurement gets bigger?
a)
Frequency 
b)
Amplitude 
c)
Wavelength 
d)
Crest
5.
If distance C on the diagram increased, what would happen to the pitch? 
a)
The pitch would be louder. 
b)
The pitch would be softer. 
c)
The pitch would be higher. 
d)
The pitch would be lower. 
6.

What are the main functions of the excretory system?

a)

deliver oxygen to the body

b)

remove water and waste from the body

c)

deliver nutrients to the body

d)

remove disease from the body

7.

Which organ(s) remove waste gases?

a)

Bladder and kidneys

b)

Lungs

c)

Large intestine

8.

The job of your kidneys is to

a)

Create feces

b)

Take carbon dioxide out of your blood

c)

Put oxygen into your blood

d)

filter the blood, sending waste to bladder

9.
Main organs and their functions?
a)
The ureter,the kidneys,the bladder,the prostrate and the Uretha
b)
The kidneys and the urethera
c)
The ureter,the kidneys,the bladder and the prostrate
d)
Living things
10.

Which organs help to remove waste from the body?

a)

Lungs, stomach, bladder, and kidneys

b)

Lungs, heart, bones, and bladder

c)

Lungs, large intestine, bladder and kidneys

d)

Lungs, esophagus, bladder and kidneys

11.

What is light?

a)

Light is what comes from the sun

b)

A luminous substance

c)

Light is a electromagnetic radiation that can be recognized by human eyes

d)

a hot radiation

12.
Why does the pencil look broken?
a)
Light is refracting
b)
Light is reflecting
c)
Light is absorbing
d)
Light is diffusing
13.
Why does a spoon look bigger in the water than it does on the top?
a)
The light refracts as it moves from air to water
b)
The light reflects as it moves from air to water
c)
The light absorbs as it moves from air to water
d)
The light is diffused as it moves from air to water
14.

Type of mirror used in a convenience store to provide a wide angle view...

a)

Plane

b)

Convex

c)

Concave

15.

According to the law of reflection the angle of incidence is ____________ the angle of reflection.

a)

less than

b)

greater than

c)

equal to

16.
The following is a picture of what type of mirror? 
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
17.

Which of the following best describes the image formed by a plane mirror?

a)

virtual, inverted and enlarged

b)

real, inverted and reduced

c)

virtual, upright and the same size as object

d)

real, upright and the same size as object

18.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
19.

When light waves move from passing through air to passing through a glass lens when happens to them?

a)

They slow down and change direction

b)

They speed up and change direction

c)

They maintain the same speed and change direction

d)

They maintain their same speed and direction

20.

A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?

a)

A

b)

B

c)

A and B

d)

neither A or B

21.

The table below describes the characteristics of images formed by four optical instruments.
Which one of those instruments describes a plane mirror?

a)

X

b)

Y

c)

P

d)

Q

22.
Which parts of your eye are transparent?
a)
retina
b)
optic nerve
c)
cornea and lens
d)
iris
23.

The function of the human eye is to _______.

a)

focus light rays to produce images of objects

b)

capture sound waves and convert them to images

c)

capture electrical energy and transform it to brain waves

d)

capture light waves and convert them to mechanical energy

24.

What are 2 functions of the iris?

a)

provides the clearest, most accurate vision possible

b)

controls the amount of light that goes into the eye

c)

to provide 65-75% of the eyes ability to focus

d)

controls the size of the pupil

25.

Which image shows normal vision?

a)

A

b)

B

c)

C

d)

D

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