Physics
Practice Physics MCQs from the Science syllabus.
A girl of mass 40 kg runs up a flight of 50 steps, each 10 cm high. The work done by her is: (g = 10 m/s^2)
If the kinetic energy of a body becomes 9 times its initial value, its momentum becomes:
The kinetic energy of a body of mass 2 kg moving with a velocity of 2 m/s is:
A stone of mass 5 kg is dropped from a height of 10 m. What is its kinetic energy just before hitting the ground? (g = 10 m/s^2)
How much work is done when a force of 5 N moves an object through 10 cm in the direction of the force?
Which of these is used to store electrical energy in the form of chemical energy?
Calculate the kinetic energy of a ball of mass 0.5 kg moving at a speed of 4 m/s.
When a force acts at an angle of 180 degrees to displacement, the work done is:
The energy of the wind is used to rotate the blades of a windmill. This is an example of converting:
The work-energy theorem states that work done on a body is equal to change in its:
A man of 60 kg climbs up 20 m. If he takes 10 seconds, what is his power? (g = 10 m/s^2)
When the speed of a moving body is doubled, its momentum is:
Which of these is the most common form of energy released during friction?
A spring is stretched by 2 cm. If the spring constant is 100 N/m, the energy stored is: