Q No: 1 Encircle the correct answer.
1: The area under the velocity time graph is
a: Force b: acceleration c: Distance d: Torque
2: When the velocity time graph is straight line parallel to time axis, then:
A: a is constant B: a is variable C: a is zero
D: velocity is zero
3: The unit of acceleration is:
a: m
b: ms c: m
d: s
4: The slope of velocity time graph gives:
a: Distance b: Area c: Acceleration d: Speed
5: A stone is thrown up from the surface of earth when it reaches its maximum
height, its K.E is equal to:
a: Zero b: mgh c:
m
d: 2mgh
6: The distance covered by free falling body in two seconds is:
a: 9.8m b: 19.6m c: 44.4m d: 49m
7: The value of ‘g’ at the centre of earth is:
a: infinite b: 2g c: 3g d: zero
8: The mass of an object is the quantitative measure of its:
a: Momentum b: Acceleration c: Inertia d: energy
9: When a ball is thrown straight up, the acceleration at its highest point is:
a: upward b: downward c: zero d: horizontal