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WorksheetsSemester 2 Final Part A
Total questions: 31
Worksheet time: 8hrs 45mins
Name
Class
Date
1.
What is a system?
a)
A. A bunch of unrelated facts
b)
B. The lost and never found homework located somewhere in your bedroom.
c)
C. A set of connected things that work together.
2.
Energy can be classified as ________ and _________.
a)
A. kinetic and potential
b)
B. Chemical and non-chemical
c)
C. Good and bad
3.
Which position in the picture has the greatest potential energy?
a)
A. Position 1
b)
B. Position 2
c)
C. Position 3
d)
D. Position 4
4.
Which position in the picture has the greatest kinetic energy?
a)
A. Position 1
b)
B. Position 2
c)
C. Position 3
d)
D. Position 4
5.
True or False. If a swing gains speed, its potential energy is destroyed and kinetic energy is created.
a)
A. True
b)
B. False
6.
What are 2 forces that slow you down so that you can't swing forever?
a)
A. gravity and friction
b)
B. force and Yoda
c)
C. mass and weight
d)
D. height and weight
7.
The OutRunner Robot has a mass of 5 kg and is moving at 3.87 m/s. What is its kinetic energy?
a)
A. 9.68 Watts
b)
B. 100,000 mph
c)
C. 750 km/s
d)
D. 37.44 J
8.
True or False. Heat is the same as thermal energy.
a)
A. True
b)
B. False
9.
True or False. Temperature measures heat and thermal energy.
a)
A. True
b)
B. False
10.
What are the 3 main processes that thermal energy is transferred?
a)
A. Constitution, Revolution, and Democracy
b)
B. Convection, Conduction, and Radiation
11.
In the picture, which particles are the hottest?
a)
A. Solid
b)
B. Liquid
c)
C. Gas
12.
Heat moves from a (warmer/cooler) object to a (warmer/cooler) object.
a)
A. warmer, cooler
b)
B. cooler, warmer
13.
Thermal energy moves from an object with (most/least) thermal energy to an object with the (most/least) thermal energy.
a)
A. least, most
b)
B. most, least
14.
In the image, where do the balls get their energy and where does the energy go?
a)
A. from the Cookie Monster and it goes into outer space
b)
B. gravity and it goes into the next ball
15.
If the total mechanical energy of the system shown is 100 J: Where does the pendulum have 100 J of kinetic energy?
a)
A. Position A
b)
B. Position B
c)
C. Position C
d)
D. Position D
16.
If the total mechanical energy of the system shown is 100 J: How many joules of potential energy does the pendulum have at Position D?
a)
A. 0 J
b)
B. 50 J
17.
If the total mechanical energy of the system shown is 100 J: Where does the pendulum have 100 J of potential energy?
a)
A. Position A
b)
B. Position B
c)
C. Position C
d)
D. Position D
18.
If the total mechanical energy of the system shown is 100 J: How many joules of kinetic energy does the pendulum have at Position A?
a)
A. 0 J
b)
B. 50 J
19.
What is the scientific definition of work?
a)
A. constant movement
b)
B. using a force to move an object a distance (when both the force and the motion of the object are in the SAME direction
20.
Based on the scientific definition of work, which example is work?
a)
A. Ms. D teaching science
b)
B. a mouse pushing a piece of cheese across the floor
21.
Calculate: If a man pushes a concrete block 5 meters with a force of 2 N, how much work has he done?
a)
A. 10 Nm
b)
B. 40 hrs of overtime
c)
C. 15 J
22.
Holly lifts the 20 kg barbell over her head (approximately 0.50 m) 15 times in one minute. Sa Jae-Hyouk lifts the 20 kg barbell the same distance over his head 10 times in 10 seconds. Which weightlifter does the most work?
a)
A. Holly
b)
B. Sa Jae-Hyouk
c)
C. Neither. They do the same amount of work.
23.
Holly lifts the 20 kg barbell over her head (approximately 0.50 m) 15 times in one minute. Sa Jae-Hyouk lifts the 20 kg barbell the same distance over his head 10 times in 10 seconds. Which weightlifter delivers the most power?
a)
A. Holly
b)
B. Sa Jae-Hyouk
24.
How much power will it take to move a 20 kg mass at an acceleration of 4 m/s/s a distance of 20 meters in 10 seconds?
a)
A. 120 Watts
b)
B. 20 Watts
c)
C. 160 Watts
25.
The picture is an example of what kind of simple machine?
a)
A. Lever
b)
B. Gear
c)
C. Incline plane
26.
The picture is an example of what kind of simple machine?
a)
A. Screw
b)
B. Wedge
c)
C. Wheel and Axle
27.
The picture is an example of what kind of lever?
a)
A. First Class Lever
b)
B. Second Class Lever
c)
C. Third Class Lever
28.
Name 1 difference between a fixed pulley and a moveable pulley.
a)
A. Fixed pulley doesn't create a mechanical advantage.
b)
B. Moveable pulley only lifts objects.
29.
True or False. Kinetic energy depends on the mass and speed of an object.
a)
A. True
b)
B. False
30.
Gravitational, chemical, electrical, and nuclear are what type of energy?
a)
A. Kinetic energy
b)
B. Potential energy
31.
Light, wind, thermal, and sound are what type of energy?
a)
A. Potential energy
b)
B. Kinetic energy
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