WorksheetsP6ABCD Review
Total questions: 25
Worksheet time: 32mins
Work causes a change in
Sweat
Energy
Calories
Force
Kinetic energy is associated with ---.
speed
position
direction
temperature
Where is the kinetic energy of pendulum at its highest?
at the top of the swing
at the bottom of the swing
at 1/4 of the swing
at 3/4 of the swing
Where does the pendulum have the least amount of potential energy?
A
B
C
D
E
Where is kinetic energy at its maximum?
a
b
c
d
A man of mass 50 kg jumps to a height of 1 m. His potential energy at the highest point is(g = 10 m/s2)
(a) 500 J
(b) 50 J
(c) 5 J
(d) 5000 J
A 10.0 kg box is accelerated from 2.0 m/s to 4.0 m/s. What is the amount of work needed to accelerate the box?
50 J
60 J
20 J
45 J
What is the equation for Kinetic Energy (KE)?
KE = 2mv2
KE = 2mv
KE = mv2
Which of the following statements are true about potential energy?
Both gravitational and elastic potential energy are dependent upon the speed of an object.
Moving objects cannot have potential energy.
None of these
Potential energy is the energy stored in an object due to its position.
As speed increases, kinetic energy
Increases
Decreases
Stays the same
Increase then decrease
The kid at the top of the roller coaster car pictured here has
100% Potential Energy
0% Kinetic Energy
75% Potential Energy
25% Kinetic Energy
50% Potential Energy
50% Kinetic Energy
0% Potential Energy
100% Kinetic Energy
Using the equation for KE= 21mv2 , what is the energy of the 5-kg moving object moving at 4 m/ s2 ?
20 Joules
40 Joules
30 Joules
1.2 Joules
Energy cannot be created nor destroyed it just transferred from one form to another. This law is known as ______.
Law of Momemtum
Newton's Law of Motion
Law of Conservation of Energy
Mass and Energy Equavalence
A 1kg-ball is released from the top of Robert Abbott Middle School building from the ground approximately of 9 m-height. What is the gravitational potential energy? hint g = 9.8 m/ s2 .
88.2 Joules
18.8 Joules
0.8 Joules
9.8 Joules
There are two condition of work to be done....
Constant applied force on the object
Object travel a distance in the same direction of force
Both
Power =
Work + time
Work / time
Work x time
Two workers use 100 N of force to move a sofa 2 meters in 2 seconds. How much power is required?
100 watts
400 watts
104 watts
50 watts
