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Fall Semester Review III
Test Description: 8th Semester Review 2017-2018
Instructions: Answer all questions to get your test result.
1) A student needs an element that reacts like magnesium but has a greater mass number for an experiment. Which element would she most likely choose for the experiment?
A
bromine
B
sodium
C
calcium
D
flourine
2) Energy transformation for a light bulb to be illuminated.
A
electrical to radiant
B
electrical to mechanical
C
chemical to thermal
D
mechanical to nuclear
3) Which of the following describes work being done?
A
a student is lifting a small box from the desk to the floor
B
a student is looking at the box
C
a student is sitting in a chair holding the box
D
a student is holding a box above the floor
4) How do you know work is being done on an object?
A
object moves with no force acting on it
B
force is applied but the object does not move
C
force is applied and the object moves a distance
D
equal and opposite stationary reaction
5) How much work is being done if a box is moved 0.5m from rest, with the force of 10N? W=FxD
A
0.5J
B
1J
C
10J
D
5J
6) Space Shuttle lifts off the launch pad.
A
work
B
speed
C
velocity
D
acceleration
7) A Hurricane Harvey traveled 9mi/hr WNW
A
velocity
B
speed
C
work
D
acceleration
8) A brand new motorcycle goes from 0 to 60 mi/hr. in 3 seconds.
A
speed
B
acceleration
C
velocity
D
work
9) A car slows down from 50 m/s to 10m/s
A
acceleration
B
velocity
C
speed
D
work
10) Which of the following is the best example of an object undergoing acceleration?
A
a book sitting on a shelf
B
a car traveling at a constant rate of 20 miles per hour
C
a dog and a human walking a 0.8 meters per second
D
A bird changing direction to fly away from a predator
11) What is the formula for determining speed?
A
s=d/t
B
d=v/t
C
s=t/d
D
f=ma
12) Two teams are exerting equal forces on each other in opposite directions. Which of the following best describes the forces being used?
A
the forces are balanced and the net force is greater than zero
B
the forces are not strong enough to move either team
C
the forces are balanced and the net force is zero.
D
the forces are unbalanced and the net force is zero
13) A force of 4.5N was applied to a car. The car accelerates 1.5 m/s? What was the mass of the car?
A
7kg
B
4.5kg
C
1.5kg
D
3kg
14) A chimpanzee launched into space experienced an acceleration of 25 m/s. If the chimpanzee had a mass of 50kg, what is the net force?
A
1,250N
B
25N
C
50N
D
2N
15) Starting from rest at the center of a skating rink, two skaters push off from each other. Which statement best explains why the skaters move in opposite directions?
A
the Earth exerts and attractive force on objects called gravity
B
an object in motion contains kinetic energy
C
for every action, there is an equal and opposite reaction force
D
Objects in motion will stay in motion unless acted on by an unbalanced force.
16) A student exerts a force of 5N to move a 2 kg toy car. What is the acceleration of the toy car when it begins to move?
A
2.5m/s
B
5m/s
C
10m/s
D
2m/s
17) What color are the hottest stars?
A
red
B
black
C
blue
D
yellow
18) What color are the coolest stars?
A
red
B
blue
C
black
D
yellow
19) Type of galaxy our solar system is in...
A
irregular
B
cat's eye
C
elliptical
D
spiral
20) Name of our galaxy..
A
andromeda
B
milky way
C
whirlpool
D
sombrero
*select an answer for all questions
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