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WorksheetsConversation of Energy
Total questions: 10
Worksheet time: 5mins
Formula for KE energy
1/2mv^2
mgh
1/3mv^2
1/2mr^2
Lee pushes horizontally with a force of 93 N on a 30 kg mass for 16 m across a floor. Calculate the amount of work Lee did. Answer in units of J.
1488 J
810 J
948 J
1483 J
Is it true that PE = mgh
False
True
What is Potential energy definition ?
energy that is stored
the energy left in the object
energy
force of an object
What is the formula to find the mechanical energy ?
ME= PE + KA
ME= Kr + PE
ME+PE+KE
ME= PE + KE
What is work defined as ?
a force that causes displacement
The change in motion
Change in height
force done against friction
The amount of work done by two boys who apply 340 N of force in an unsuccessful attempt to move a stalled car is
680 N
340 N
210 N
0 N
Is it true that KE is the change in motion
True
False
A weight lifter lifts a set of weights a vertical distance of 2.16 m. If a constant net force of 375 N is exerted on the weights, how much net work is done on the weights? Answer in units of J.
810 J
815 J
720 J
730 J
What is the equation is used to find work?
F x W=d
F x d=W
N x M=W
M x d=W
