What form of energy does a glowing bulb emit?
Light energy
In an electric bulb, electrical energy supplied to the filament (or LED) is converted into other forms of energy.
The glow we see is the emission of light energy, along with some heat; a bulb does not give out gravitational, chemical or sound energy.
Hence, the answer is Light energy.
A box is raised to the same height either by lifting it vertically or by pushing it up an ideal inclined plane. Which quantity is the same in both cases?
The work done to increase the kinetic energy of a 4 kg object from 50 J to 98 J is:
According to the work-energy theorem, if the net work done on an object is zero, then its kinetic energy ________.
A car with a mass of 1000 kg is moving at a speed of 25 m/s. If the driver applies the brakes and brings the car to a stop, how much kinetic energy is lost during this process?
If a force of 1 N displaces an object by 1 m along the line of force, the work done is:
A trolley is pulled along a straight track by a constant force of 40 N. If the work done on the trolley is 240 J, what distance does the trolley travel?
An athlete of mass 60 kg runs at 5 m/s. What is the kinetic energy gained compared to standing still?
Which of the following physical quantities affect gravitational potential energy?
Which statement about power is correct?
A force of 45 N causes an object to move 3 m in the direction of the force. Calculate the work done.