Practice Work and power, efficiency with authentic MYP MYP Physics exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like mechanics, thermodynamics, and waves. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.
A constant horizontal force is applied to a block, moving it a distance across a horizontal floor at a constant velocity. Which of the following represents the work done by the force ?
When work is done on an object without any energy being dissipated as heat, the work done is exactly equal to the change in the object's total __________.
When a ball is thrown vertically upwards, which of the following best describes the work done by gravity on the ball during its ascent?
Which of the following describes a situation where the work done is negative?
For an ideal mechanical system moving at a constant speed, power can be calculated using the force and velocity as .
An electric kettle with a power rating of is used for . How much energy is transferred to the kettle during this time?
In mechanical systems, 'wasted' energy is most commonly transferred to the surroundings in the form of __________.
An electric car motor produces of power to keep the car moving at a constant speed of . What is the magnitude of the total resistive forces (friction and air resistance) acting against the car?
True or False: It is possible for a highly advanced machine to have an efficiency of if it uses superconducting materials.
A worker uses a ramp to push a crate with a weight of to a height of . The worker applies a force of parallel to the ramp over a distance of . What is the efficiency of the ramp system?
Practice Work and power, efficiency with authentic MYP MYP Physics exam questions for both SL and HL students. This question bank mirrors Paper 1, 2, 3 structure, covering key topics like mechanics, thermodynamics, and waves. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of MYP examiners.
A constant horizontal force is applied to a block, moving it a distance across a horizontal floor at a constant velocity. Which of the following represents the work done by the force ?
When work is done on an object without any energy being dissipated as heat, the work done is exactly equal to the change in the object's total __________.
When a ball is thrown vertically upwards, which of the following best describes the work done by gravity on the ball during its ascent?
Which of the following describes a situation where the work done is negative?
For an ideal mechanical system moving at a constant speed, power can be calculated using the force and velocity as .
An electric kettle with a power rating of is used for . How much energy is transferred to the kettle during this time?
In mechanical systems, 'wasted' energy is most commonly transferred to the surroundings in the form of __________.
An electric car motor produces of power to keep the car moving at a constant speed of . What is the magnitude of the total resistive forces (friction and air resistance) acting against the car?
True or False: It is possible for a highly advanced machine to have an efficiency of if it uses superconducting materials.
A worker uses a ramp to push a crate with a weight of to a height of . The worker applies a force of parallel to the ramp over a distance of . What is the efficiency of the ramp system?