Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Chapter 7 Review
Test Description: Exam review
Instructions: Answer all questions to get your test result.
1) What direction does force need to act to produce the greatest amount of work?
A
against the motion
B
in the same direction of the motion
C
perpendicular to the direction of motion
D
at a 45* angle of the motion
2) A car jack exerts a force of 4000 to raise a car 1.2 meters. The amount of work done by the jack is _____Joules
A
4800
B
10200
C
3333
D
0
3) The action that would require no work to be done is
A
pushing a cart of the hill
B
lifting a balloon from the floor to the table
C
holding your textbook
D
throwing a baseball
4) A 60 N block is pushed up of ramp that is 4 meters long and 3 meters tall. The amount of work done against gravity is ______ joules
A
180
B
45
C
360
D
0
5) when work is done on an object, causing the object to move, the object gains
A
kinetic energy
B
efficiency
C
friction
D
mechanical advantage
6) An electric heater raises the temperature of water by adding 5250 J of energy to the water in 20 seconds. What is the needed power for this to happen?
A
262.5 watts
B
0
C
6500 watts
D
105,000 watts
7) Running up a flight of stairs, Maria generates 350 watts of power. If it took her 7 seconds to climb the stairs, how much work did she do?
A
2450 j
B
6 j
C
50 j
D
3900 j
8) A car has a mass of 6200 kg and is moving at a velocity of 15 m/s. A 20,000 N force is used to move the car 34.85 m. What is the car's kinetic energy?
A
1,395,000 j
B
697,500 j
C
93,000 j
D
15,000 j
9) what is the unit of measurement for power?
A
power does not have a unit
B
joule
C
newton
D
watt
10) what is the unit of measurement for work
A
joule
B
newton
C
watt
D
work does not have a unit
*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?