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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 determine in which direction motion is occuring.
B
It is difficult to tell people which car you are using.
C
The car will get out of sight too quickly.
D
The car has moving parts. like rolling tires that can be distracting.
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
The center of the Milky Way.
D
Earth
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
A student walking on the sidewalk.
B
The front entrance of the school.
C
A car waiting to pick up another student.
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
60min
B
65mph
C
52mph
D
60mph
5) The SI unit for measuring distance is the ________.
A
distance
B
longitude
C
kilogram
D
meter
6) ____________ is the length of the path between two points.
A
Centimeter
B
Kilometer
C
Meter
D
Distance
7) A ___________________ is a place or object used for comparison to determine if something is in motion.
A
dot
B
Reference point
C
graph
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
60N
B
50N
C
40N
D
10N
9) Work/Time=______________
A
Power
B
Time
C
Force
D
Speed
10) The unit of work is the ___________
A
Newton
B
MPH
C
Joule
11) The unit of power is the ___________.
A
Speed
B
MPH
C
Watt
D
Joule
12) The force you exert when you use a machine is the __________.
A
Input force
B
Output force
C
Equilibrium
D
Net Force
13) The force exerted by the machine is the _____________.
A
Time
B
Net force
C
Input force
D
Output force
14) Divide output work by input work and multiply by 100% to find a machine's.....
A
Time
B
Efficiency
C
Output work
D
Watt
15) The fixed point that a lever pivots around is the _______.
A
screw
B
fulcrum
C
plane
D
wedge
16) A single fixed pulley changes the ____________ of a force.
A
axle
B
weight
C
direction
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
False
B
True
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
True
B
False
*select an answer for all questions
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