Summited date 16/09/2013EC (from 10%) SEMISTER PHYSICS ASSIGHMENT FOR
Show the necessary step clearly and neatly and you will take good hand write
1 If a speed of an object is doubled by what factor does the kinetic energy of the object change (pt)
2
When 100J of energy is stored in a spring, the spring is compressed 50cm. what is the force constant of
the spring (Ipt)
Weite the difference between renewable and non-renewable resource (Ipt)
List and explain the renewable resource about positive and negative impact (2.pt)
5. How to generate energy in Ethiopia (1pt)
4
6 A machine is 60% efficient. The effort moves through 5 times the distance the load moves. What effort
is required to raise a load of 120N (ipt)
7. A particle of mass 200g is thrown straight up with a velocity of 4m/s, what PE did object gain at
8
An inclined plane length 10m has a height of 6m, if the coefficient
A What force parallel to the plane is needed to slid the 20kg block up the plane with a uniform speed
(ipt)
B. What is the sufficient of the plane (2pt)
maximum height (1pt)
plane is 0.4