Energy Transfer - JSS2 Basic science Past Questions and Answers - page 1
When work is done on an object, what happens to energy?
It is created
It disappears
It is transferred from one form to another
It remains unchanged
What type of energy can an object gain when work is done on it?
Thermal energy
Potential energy
Magnetic energy
Chemical energy
According to the law of conservation of energy, what happens to the total energy in a system when work is done?
It decreases
It increases
It remains constant
It becomes negative
Which of the following is an example of energy transfer when work is done on an object?
Sitting still
Sleeping
Pushing a car
Reading a book
Which of the following is an example of energy transfer when work is done on an object?
Sitting still
Sleeping
Pushing a car
Reading a book
What happens to the energy of an object when it starts moving due to work being done on it?
It decreases
It increases
It disappears
It remains unchanged
Which law states that energy cannot be created or destroyed, only transferred or transformed?
Law of Motion
Law of Conservation of Energy
Law of Gravitation
Law of Thermodynamics
What is the main outcome when work is done on an object?
The object gets smaller
The object becomes invisible
The object gains or loses energy
The object changes color
How does the concept of work relate to the transfer of energy?
Work involves the transfer of energy from one object to another or from one form to another. When work is done on an object, energy is transferred to that object, causing changes in its energy state.
Can you provide an example of energy transfer occurring when work is done?
One example is pushing a car. When you push a car, you're applying a force to it, doing work on the car, and transferring energy from your muscles to the car. This energy transfer causes the car to move, demonstrating the conversion of muscular energy into kinetic energy of the car.