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Lembar kerja3.3 Common Assessment Review PreAP
Total soal: 21
Worksheet time: 12mins
Nama
Kelas
Tanggal
1.
When a ball is thrown into the air, it follows a curved path.
At which point does the ball have the greatest amount of gravitational potential energy?
At which point does the ball have the greatest amount of gravitational potential energy?
a)
W
b)
X
c)
Y
d)
Z
2.
Which vehicle would have the most kinetic energy?
a)
Motorcycle
b)
Car
c)
Box Truck
d)
Pickup Truck
3.
Why would a baseball have more kinetic energy than a golf ball?
a)
It has less mass
b)
They actually would have the same kinetic energy
c)
It has more mass
d)
It can be hit further
4.
In a swimming race, Miho swam the first 50 m in 32 s. She swam the second 50 m in 30 s. What was Miho's average speed during the race?
a)
1.61 m/s
b)
1.65 m/s
c)
.97 m/s
d)
1.59 m/s
5.
An airplane leaves New York to fly to Dallas. It travels 2,492 km in 5.5 hours. What is the average speed of the airplane?
a)
453 km
b)
453 hours
c)
453 km/hour
d)
4530 hours/km
6.
Which unit would be most appropriate to measure the length of a classroom here at school?
a)
Meters
b)
Kilometers
c)
Millimeters
d)
Centimeters
7.
A fixed pulley has a mechanical advantage of 1. Why are fixed pulleys useful machines?
a)
Output force is greater than input force
b)
They decrease the work you do
c)
They make what you are lifting lighter
d)
They change the force's direction
8.
The formula you use to calculate mechanical advantage of an inclined plane is...
a)
Length divided by height
b)
Output force divided by input force
c)
Height divided by length
d)
Input force divided by output force
9.
A worker moves a heavy load into a house with the aid of an inclined plane. If the plane has a length of 7.0 meters and a height of 2.0 meters, what is its ideal mechanical advantage?
a)
9.0
b)
3.5
c)
14.0
d)
0.285
10.
Your coworker told you about a new pulley she used to lift some objects. She said, "The best part is it makes me do less work." What should you say to your coworker to correct her understanding?
a)
Don't need to say anything to her
b)
"Actually, you have to do more work."
c)
"That new pulley only changes the way you do your work. It doesn't reduce it."
d)
"Your right and you can do that work in a shorter amount of time."
11.
This is the formula to calculate acceleration. You should...
a)
Write it down now!!!
b)
Don't Write it down now
c)
Write it down later
d)
Write it down now eventually
12.
What is the acceleration of this car?
a)
20 m/s2
b)
10 m/s2
c)
5 m/s2
d)
15 m/s2
13.
Kinetic energy depends on...
a)
mass and volume
b)
velocity and weight
c)
weight and height
d)
velocity and mass
14.
What type of energy do apples on a tree have?
a)
Kinetic Energy
b)
Mechanical Energy
c)
Gravitational Potential Energy
d)
Sound Energy
15.
Which of the following statements correctly describes the force that propels a rocket upward during launch?
a)
The gases push the rocket upward with a force equal to the rocket pushing the gases downward.
b)
The gases push downward with a force equal to the rocket pushing the gases downward.
c)
The rocket pushes upward with more force than the gases push downward
d)
The rocket pushes downward with more force than the gases push upward
16.
What happens when unbalanced forces act upon an object?
a)
Motion won't change
b)
Motion will change
c)
The forces will cancel out
17.
How would you calculate your average speed if you walked from this class to your next class?
a)
Total distance divided by total time would equal my average speed.
b)
Total time divided by total distance would equal my average speed.
c)
Total distance times total time would equal my average speed.
d)
Total distance plus two divided by total time would equal my average speed.
18.
What is an airplane's speed, approximately, if it travels 3000 miles in 3.5 hours?
a)
860 km/h
b)
420 km/h
c)
500 km/h
d)
600 km/h
19.
What can a machine do if it has a mechanical advantage of less than one?
a)
Increase the distance
b)
Multiply the force
c)
Increase the output force
d)
Reduce distance and speed
20.
What is an example of an inclined plane?
a)
Door stopper
b)
The hinge on a door
c)
Shovel
d)
Ramp
21.
In which trial did the cart experience the lowest average acceleration?
a)
Trial 1
b)
Trial 2
c)
Trial 3
d)
Trial 4
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