Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
8th Grade First Semester Exam Review Part 2
Test Description: This is a review for a small portion of the final exam.
Instructions: Answer all questions to get your test result.
1) A ramp is an example of a simple machine called a(n)
A
pulley.
B
lever.
C
inclined plane.
D
wedge.
2) In order to do work on an object, the force you exert must be
A
the maximum amount of force you are able to exert.
B
in a direction opposite to Earth's gravitational force.
C
in the same direction as the object's motion.
D
quick and deliberate.
3) Work is measured in
A
watts.
B
meters.
C
newtons.
D
joules.
4) Pulling down on a rope to hoist a sail on a sailboat is an example of a machine
A
changing the direction over which a force is exerted.
B
multiplying the distance over which a force is exerted.
C
multiplying the force you exert.
D
reducing friction.
5) The mechanical advantage of a machine is the number of times a machine increases
A
the distance an object is moved.
B
the change in direction.
C
the amount of friction.
D
the force exerted on the machine.
6) An ideal machine would have an efficiency of
A
50%.
B
100%.
C
1 %.
D
10%.
7) The fixed point that a lever pivots around is called the
A
axle.
B
fulcrum.
C
gear.
D
pulley.
8) Which of these is an example of a third-class lever?
A
nutcracker.
B
scissors.
C
fishing pole
D
pliers.
9) The power of a light bulb the converts electrical energy at a rate of 100 joules per second is
A
200 watts.
B
40 watts.
C
50 watts.
D
100 watts.
10) What do machines do?
A
eliminate friction
B
makes work easier
C
increase the amount of work that is done
D
decrease the amount of work that is done
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?