Load Dynamics

What is friction?

• Friction is the force that causes objects to float.

• Friction is the force that attracts objects to each other.

• Friction is the force that opposes the motion of an object when it is in contact with another object or surface.

• Friction is the force that accelerates the motion of an object.

What is inertia?

• The force that attracts a body toward the center of the earth, or toward any other physical body having mass

• The force that causes an object to move in a circular path

• The ability of an object to float in a liquid

• Resistance of any physical object to any change in its state of motion

How does friction affect the movement of an object?

• Friction slows down or stops the movement of an object.

• Friction causes the object to change direction.

• Friction has no effect on the movement of an object.

• Friction speeds up the movement of an object.

What is work?

• Work is the act of exercising or physical activity

• Work is the transfer of energy that occurs when a force is applied to an object and it moves in the direction of the force.

• Work is the process of fixing something that is broken

• Work is the amount of time spent at a job

What is energy?

• Energy is only found in living organisms

• Energy is the ability to do work or cause change.

• Energy is a form of light

• Energy is the same as matter

How is work related to energy?

• Work is the absence of energy

• Work is unrelated to energy

• Work is the transfer of energy from one system to another.

• Work is the destruction of energy

What is kinetic energy?

• Energy an object possesses due to its motion

• Energy stored in an object at rest

• The potential energy of an object

• The energy released during a chemical reaction

What is potential energy?

• Potential energy is the energy that an object has due to its position or state, and it has the potential to do work.

• Potential energy is the energy of light

• Potential energy is the energy of sound

• Potential energy is the energy of motion

How does the mass of an object affect its inertia?

• The mass of an object affects its inertia by causing it to decrease

• The mass of an object affects its inertia by an inversely proportional relationship

• The mass of an object affects its inertia by directly proportional relationship. The greater the mass, the greater the inertia.

• The mass of an object has no effect on its inertia

Explain the concept of mechanical energy.

• Mechanical energy is the sum of potential energy and kinetic energy in an object.

• Mechanical energy is the energy of sound waves

• Mechanical energy is the energy produced by machines

• Mechanical energy is the energy stored in chemical bonds