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1st Semester Test (part 3)
Test Description: Cells and Life, Body System, Energy and Matter
Instructions: Answer all questions to get your test result.
1) When something is not able to be seen through, it isn't transparent when light is shown on it
A
reflective
B
clear
C
opaque
D
translucent
2) When light is shown through an object but there aren't details images of the light
A
transparent
B
opaque
C
translucent
D
reflective
3) How are particles arranged and what is the motion of the particles of a liquid?
A
They are relatively close together, but move in a random motion freely through the environment
B
spread far apart and move slow
C
densely packed and move in a stationary position through vibration
D
They are relatively close together, can move a little and even flow over and around each other
4) What does a mechanical wave need to be able to travel?
A
a medium (matter)
B
a good current
C
thin air
D
wind
5) What is the movement in a transvers wave?
A
vertically
B
Up and down and front to back so they create a current
C
horizontally
D
up and down in the opposite direction of the wave
6) How do the particles move in a longitudinal wave?
A
back and forth in the same direction as the wave
B
in a random motion
C
up and down in the opposite direction of the wave
D
back and forth, up and down causing a current
7) The sun's rays warm Earth through what type of heat transfer?
A
conduction
B
specific heat
C
convection
D
radiation
8) Which of the following is an example of convection
A
air freshener diffusing throughout a room
B
boiling water
C
roasting a marshmallow over an open fire
D
an erupting volcano
9) The frequency of a wave is measured by which of the following
A
Count the number of times the wave passes a fixed point in a given amount of time
B
counting to see how long the wave stays up
C
using a sonar system
D
using a yard stick
10) A wavelength is
A
the distance between each successive crest of a wave
B
how long a person waves
C
how we are able to hear someone talk through a phone
D
the variable of change in a single period
11) The crest of a wave is which of the following
A
the maximum value of upward displacement within a cycle
B
the amount of times the waves fall and come back up
C
the measurement of how fast the wave is moving
D
the minimum or lowest point in a cycle of a wave
12) What is the trough of a wave
A
the minimum or lowest point in a cycle of a wave
B
a type of wave
C
the space between the top of the wave and the bottom of the wave
D
the maximum value of upward displacement within a cycle
*select an answer for all questions
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