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Class 9
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Force required to move a wooden block
Force required to move a wooden block
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1)
If all we know about an object is that it is moving north, what can we understand?
There is a single force on the object directed north.
There is a net force on the object directed north.
There may be several forces on the object, but the largest must be directed north.
Nothing about the forces on the object.
2)
1N =………………kg.wt
9.8 kg.wt
1/9.8 kg.wt
(9.8)2 kg.wt
1/(9.8)2 kg.wt
3)
The force acting on a mass of 1 g due to the gravitational pull on the earth is called 1 g.wt. What does one g-wt equal?
980 dyne
9.8 N
1 N
1/9.8 N
4)
What is the relation between a Newton and a dyne?
1N = 1 dyne
1N = 1000000 dyne
1 N = 980 dyne
1 N = 10000 dyne
5)
How much force is needed to produce an acceleration of 1ms-2 in a body of mass 1 kg?
9.8 N
0.1 N
1 N
10 N
6)
When would the weight of a body NOT be zero?
During a free fall.
On a frictionless surface.
In interplanetary space.
At the centre of the earth.
7)
If a rock is brought from the surface of the moon, which of the following is true?
Its weight will change, but not mass.
Both mass and weight will change.
Its mass will change.
Mass of a body will remains the same.
8)
Which Law gives the measure of force?
Newton’s First Law
Newton’s Second Law
Newton’s Third Law
Impulse of the force
9)
A rain drop of mass 0.1 g is falling with uniform speed of 10 cms-1. What is the net force acting on the drop?
Zero
0.001 N
0.02 N
0.01 N
10)
Which of the following is a vector quantity?
Force
Momentum
Displacement
All of these
11)
What is the physical quantity that takes into account the combined effect of mass and velocity?
Momentum
Torque
Moment of momentum
Moment of force
Cite this Simulator:
amrita.olabs.edu.in,. (2012). Force required to move a wooden block. Retrieved 21 May 2022, from amrita.olabs.edu.in/?sub=1&brch=1&sim=108&cnt=217