What evidence is there that energy is transferred as a golf club does work on a golf ball?
The kinetic energy of the golf ball suddenly increases as the club strikes it.
What is the study of the conversion of energy from one form to another called quizlet?
Terms in this set (5)
The process of changing energy from one form to another is called
energy conversion
.
What is transferred by a force moving an object through a distance?
Energy
is the ability to do work. In other words, energy is transferred by a force moving an object through a distance. When work is done on an object, energy is transferred to that object. Both work and energy are typically measured in joules (J).
Does an object need to move for work to be done?
In order for work to be done on an object, the
object must move some distance as a result of the force you apply
. There are also constraints on the force you apply. Only force exerted in the same direction as the movement of the object result in work. … In reality you do no work at all!
How is energy transferred when work is done?
When work is done, energy is transferred from the agent to the object, which results
in a change in the object’s motion
(more specifically, a change in the object’s kinetic energy).
What is the best example of a device that converts electrical energy ⇒ thermal energy?
Examples of Electrical Energy to Thermal Energy Conversions: 1.
A toaster
draws electric current (electrical energy) from a wall outlet and converts these moving electric charges into heat (thermal energy) in the filaments that turn red hot to cook your toast.
What is a change from one form of energy to another called?
Energy transformation, also known as energy conversion
, is the process of changing energy from one form to another. … In addition to being converted, according to the law of conservation of energy, energy is transferable to a different location or object, but it cannot be created or destroyed.
What happens when energy is changed from one form to another quizlet?
Scientific law stating that whenever energy is converted from one form to another in a physical or chemical change,
no energy is created or destroyed
. The total amount of energy does not change.
In which example is no work done on an object?
There are many important examples of forces which do no work because they act perpendicular to the motion. For
circular motion
, the centripetal force always acts at right angles to the motion. It changes the direction of the motion, but it does no work on the object. This can be applied to any circular orbit.
What is the force to move an object called?
In physics,
work
is defined as the use of force to move an object. … Work is directly related to both the force applied to an object and the distance the object moves. It can be represented by the equation: Work = Force × Distance.
What is the force required to move an object?
Multiply mass times acceleration.
The force (F) required to move an object of mass (m) with an acceleration (a) is given by the formula
F = m x a
. So, force = mass multiplied by acceleration.
When work is done there is a transfer?
Work is the
transfer of energy
. In physics we say that work is done on an object when you transfer energy to that object. If you put energy into an object, then you do work on that object (mass). If a first object is the agent that gives energy to a second object, then the first object does work on the second object.
How fast work is done or how fast energy is transferred?
Power is often measured in
joules of work per second
. The unit of measurement for power is the (W). One watt is equal to one joule of work done in one second. If an object does a large amount of work, its power is usually measured in units of 1000 watts, or kilowatts.
Does force transfer energy?
Bigger pushes and pulls cause bigger changes in an object’s motion or shape. When
objects collide
, contact forces transfer energy so as to change the objects’ motions. When two objects interact, each one exerts a force on the other, and these forces can transfer energy between them.
What is the best example of a device that converts electrical energy into kinetic and sound?
For example, a bulb converts electrical energy into light energy and
a speaker
converts it into sound energy.
Can you think of a device that converts electrical energy into heat?
An electric heater
is an electrical appliance that converts electrical energy into heat. The heating element inside every electric heater is simply an electrical resistor, and works on the principle of Joule heating: an electric current through a resistor converts electrical energy into heat energy.
