Physics Concepts

What is the formula for calculating force?

• F = mc^2

• F = ma

• F = mv

• F = 2ma

Explain the difference between static and kinetic friction.

• Static friction is the frictional force between two objects that are not moving relative to each other, whereas kinetic friction is the frictional force between two objects that are sliding past each other.

• Static friction is the frictional force between two objects that are moving relative to each other.

• Static friction is the frictional force that occurs when an object is in motion.

• Kinetic friction is the frictional force between two objects that are not sliding past each other.

Define Newton's first law of motion.

• An object will change its shape when acted upon by an external force.

• An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

• An object will accelerate when acted upon by an external force.

• An object will move in a circular path unless acted upon by an external force.

How does the second law of thermodynamics relate to entropy?

• The second law of thermodynamics relates to entropy by stating that the entropy of an isolated system always increases over time.

• The second law of thermodynamics does not impact entropy.

• Entropy decreases in an isolated system according to the second law of thermodynamics.

• The second law of thermodynamics states that entropy remains constant in an isolated system.

What is the equation for calculating work done in a thermodynamic process?

• W = P * ΔV

• W = Q * ΔT

• W = F * d

• W = m * g * h

Describe the concept of heat transfer through conduction.

• Heat transfer through conduction requires the substance to change its state.

• Conduction heat transfer only occurs in gases, not in solids or liquids.

• Heat transfer through conduction involves the transfer of heat energy between particles within a substance without the substance itself moving.

• Heat transfer through conduction involves the movement of particles within a substance.

What is the relationship between temperature and kinetic energy?

• Temperature is inversely proportional to kinetic energy

• Temperature has no effect on kinetic energy

• Temperature is proportional to potential energy

• Temperature is directly proportional to kinetic energy

Explain the concept of specific heat capacity.

• Specific heat capacity is the ability of a substance to conduct electricity.

• Specific heat capacity is the measure of how much a substance can hold heat.

• Specific heat capacity is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius.

• Specific heat capacity is the rate at which a substance cools down.