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Physics Class 11 - Chapter 3 -
Motion And ForceTest - 3
1.
Which shows the correct relation between time of flight T and maximum height?
a) H=T
2
/8g
b) H=8/gt
2
c) H=8t
2
/g
d) H=gt
2
/8
2.
Which of the following pair has same direction?
a) Force, velocity
b) Force, displacement
c) Force, momentum
d) Force, acceleration
3.
When collision between the bodies in a system in inelastic in nature then for system?
a) Both remain same
b) Momentum change but K.E remains same
c) Momentum and K.E both change
d) K.E change but momentum remains same
4.
The shape of velocity time graph for a constant acceleration?
a) Inclined curved path
b) Parabola
c) Hyperbola
d) straight inclined line
5.
During long jump athlete runs before taking the jumps this effects?
a) Increases his momentum
b) provide him large inertia
c) Decreases his momentum
d) Decreases his inertia
6.
A body is falling freely how much distance it has during interval of time of 1st and 2nd seconds of it motion?
a) 14
b) 15
c) 10
d) 25
7.
Motorcycle safety helmet extends the time of collision hence decreasing the?
a) Impulse
b) Velocity
c) Acceleration
d) Force
8.
The collision between two bodies be elastic if bodies are?
a) Solid and hard
b) Hard and elastic
c) solid and soft
d) Soft and elastic
9.
2nd law of Newton gives the definition of?
a) Mass
b) Velocity
c) Force
d) Acceleration
10.
3rd law of motion gives the definition of?
a) Creation of forces
b) Existence of pair of forces in nature
c) effect of forces
d) Acceleration
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