physics

The energy in the nucleus of atoms produce heat which can be used to generate?

A. Kinetic energy B. Mechanical energy C. Electrical energy D. Potential energy Correct Answer: Option A - Kinetic energy

5 years ago

An object of mass 20kg is released from a height of 10m above the ground level. The kinetic energy of the object just before it hits the ground is?

A. 200J B. 4000J C. 2000J D. 500J Correct Answer: Option C - 2000J Explanation Kinetic Energy = mgh =…

5 years ago

What happens when three coplanar non-parallel forces are in equilibrium?

A. Their lines of action are parallel. B. They are represented in magnitude only C. They are represented in direction…

5 years ago

An alternating current with a frequency of 100Hz has a period of?

A. 0.03sec B. 0.01sec C. 0.04sec D. 0.15sec Correct Answer: Option B - 0.01sec Explanation F = 100HZ, period, T…

5 years ago

Momentum and Kinetic energy are conserved in?

A. Inelastic collision B. Elastic collision C. Explosion D. Spacecraft Correct Answer: Option B - Elastic collision Explanation Momentum and…

5 years ago

The property of a body to remain at rest or to continue to move in a straight line is known as?

A. force B. Impulse C. Energy D. Inertia Correct Answer: Option D - Inertia Explanation Inertia: the property of a…

5 years ago

The normal temperature of human body is record at what ranges?

A. 27°C to 43°C B. 30°C to 40° C. 98.4°C only D. Between 35°C to 37°C Correct Answer: Option D…

5 years ago

In which of the following device in the expansion of solid is a disadvantages?

I. Simple pendulum II. Fire alarms III. Thermostat IV. Bimetallic thermometer A. III only B. II & III only C.…

5 years ago