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The MCQ: A girl accidently dropped a stone from her building, the mass os the stone is 12 g and the height is 60 m. If the air resistance can be neglected and g = 10 N kg-1, what is the speed of the stone when it hits the ground; "Work in Physics" App Download (Free) with answers: 5.6 J; 7.2 J; 3.9 J; 5.8 J; to study online courses. Practice Work in Physics Quiz Questions, download Apple e-Book (Free Sample) to enroll in online colleges.
Work in Physics MCQs: Questions and Answers PDF Download
For 2 objects of the different masses moving at same speed, the object of greater mass has
- no kinetic energy
- greater potential energy
- smaller kinetic energy
- greater kinetic energy
A girl accidently dropped a stone from her building, the mass os the stone is 12 g and the height is 60 m. If the air resistance can be neglected and g = 10 N kg-1, what is the speed of the stone when it hits the ground?
- 5.6 J
- 7.2 J
- 3.9 J
- 5.8 J
The SI unit of work is
- Joule
- kg-1
- watt
- Newton
When a body of mass m moves at a speed v, its kinetic energy is defined as
- Ek = mv2
- Ek = 1/2 mv
- Ek = (1/2)mv2
- Ek = m/v2
The product of the force and the distance moved by the object in the direction of the force is known as
- effort
- power
- efficiency
- work done
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O Level Physics Practice Questions
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O Level Physics MCQ Questions
- Quantities that have magnitude only are termed as
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- Quantity that varies due to gravitational pull variations is
- For most of people, human reaction error is about
- A thermocouple shows an EMF of 5.00 mV with one of its junctions at 0 °C and other at 100 °C. If 100 °C junction is taken out of boiling water and placed in a glass of water having temperature same as room temperature (assume room temperature in this case = 25 °C), EMF registered on thermocouple would be
Work in Physics MCQs Book Questions
- SI unit of weight is
- A good thermometer should
- A filament bulb rated at 30 W, coverts 15% of its electrical energy supply into light energy. Calculate quantity of light energy emitted in 10 minutes.
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- Temperature changes occur in solid state is