16 Questions
According to the laws of motion, what does the inertia of a body depend on?
Mass of the object
What is impulse equal to?
Rate of change of momentum
When is Newton’s Third Law applicable?
Both a & b
What does the slope of a momentum-time graph give when plotted with momentum on the X-axis and time on the Y-axis?
Impulsive force
In which sport is the turning effect of force used?
Cycling
How can the unit of ‘g’ be expressed?
N m^2 kg^-1
If the Earth shrinks to 50% of its real radius with its mass remaining the same, what will happen to the weight of a body on the Earth?
It will increase by 300%
To project rockets, which principle(s) is/(are) required?
Both a and c
The refractive index of substances A, B, C, and D are 1.31, 1.43, 1.33, and 2.4 respectively. In which substance is the speed of light maximum?
A
Where should an object be placed to obtain a real and inverted image of the same size by a convex lens?
At f
When a small bulb is placed at the principal focus of a convex lens and switched on, what type of beam will the lens produce?
A convergent beam of light
What is the magnification of a convex lens?
Positive
If a convex lens forms a real, diminished point-sized image at focus, where is the position of the object?
At focus
If the power of a lens is -4D, what is its focal length?
-2.5m
In a myopic eye, where is the image of an object formed?
Behind the retina
Which lens would you prefer to use while reading small letters found in a dictionary?
A concave lens of focal length 10 cm
Test your knowledge of the laws of motion with this interactive quiz. Choose the correct answers and see how well you understand the concepts of inertia, impulse, and momentum.
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