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Chapter 3/4 Review Games Part 2
Test Description: Physics Unit
Instructions: Answer all questions to get your test result.
1) Which is the best reason for not using a moving car as a reference point?
A
It is difficult to tell people which car you are using.
B
It is difficult to determine in which direction motion is occuring.
C
The car has moving parts. like rolling tires that can be distracting.
D
The car will get out of sight too quickly.
2) Which of the following is the best reference point for describing the motion of the planets in our solar system?
A
A spaceship in orbit about Earth.
B
The sun
C
Earth
D
The center of the Milky Way.
3) Jeff is in a stationary school bus in the front of his school. Which of these is the best reference point for him to use to determine when the bus starts to move?
A
The front entrance of the school.
B
A car waiting to pick up another student.
C
A student walking on the sidewalk.
D
The school bus next to his bus.
4) If a car traveled 78 miles in 1.30 hours, what speed was the car traveling? (Speed=Distance/Time)
A
65mph
B
60min
C
60mph
D
52mph
5) The SI unit for measuring distance is the ________.
A
longitude
B
distance
C
meter
D
kilogram
6) ____________ is the length of the path between two points.
A
Centimeter
B
Distance
C
Kilometer
D
Meter
7) A ___________________ is a place or object used for comparison to determine if something is in motion.
A
Reference point
B
graph
C
dot
8) David pushes on a book cart with 50N of force. The cart will not start moving unless David overcomes 10N of friction. What is the net force on the cart when David starts pushing? (
A
50N
B
40N
C
10N
D
60N
9) Work/Time=______________
A
Speed
B
Time
C
Power
D
Force
10) The unit of work is the ___________
A
Joule
B
MPH
C
Newton
11) The unit of power is the ___________.
A
Watt
B
MPH
C
Joule
D
Speed
12) The force you exert when you use a machine is the __________.
A
Input force
B
Equilibrium
C
Net Force
D
Output force
13) The force exerted by the machine is the _____________.
A
Time
B
Net force
C
Output force
D
Input force
14) Divide output work by input work and multiply by 100% to find a machine's.....
A
Efficiency
B
Watt
C
Output work
D
Time
15) The fixed point that a lever pivots around is the _______.
A
screw
B
wedge
C
fulcrum
D
plane
16) A single fixed pulley changes the ____________ of a force.
A
axle
B
direction
C
weight
17) A system of fixed and __________ pulleys is called a block and tackle.
A
moveable
B
immovable
18) Work is done on an object when the object moves in the same direction as the force applied.
A
True
B
False
19) The more power you use to move an object, the more work you do.
A
False, Watts
B
False, Force
C
True
20) The farther you move an object, the more work you do.
A
False
B
True
*select an answer for all questions
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