WorksheetsRolling friction
Total questions: 10
Worksheet time: 6mins
Two factors that determine work are...
Force
Mass
Velocity
Distance
He found out the element Hydrogen which was "Inflammable air". Guess who he is?(Starting Letters Capital)
(a)
Which of the colors below represent Potassium Flame?
While measuring the lenght of a of a kerchief, the reading of the scale at one end is 2.0 cm and at the other end is 33.cm. What is it’s length ?
33.1 cm
30.1 cm
31.1 cm
29.1 cm
Observe the given picture. What do you conclude from this?
The frictional force depends on the nature of the two surfaces in contact.
Frictional force increases as mass increases.
Rolling friction is less than sliding friction.
Frictional force is muscular force.
There are two jars, one is filled with water and another is empty as shown in the figure. Two balls are released from the top. In which jar does the ball reach the bottom first?
In jar filled with water
In jar without water
In both the jars at the same time
Cannot be said because data is insufficient.
Planets do not twinkle because___________.
they emit light of a constant intensity.
their distance from the earth does not change with time
they are very far away from the earth resulting in decrease in he intensity of light.
they are nearer to earth and hence we receive a greater amount of light and therefore minor variations are not noticeable.
A ball rolling over the surface of a smooth playground stops after sometime.Why?
Friction
Gravitation
Magnetism
Mechanical
