Physics Fundamentals

What is the SI unit of force?

• Watt

• Newton (N)

• Volt

• Joule

Define acceleration.

• Acceleration is the distance traveled per unit time.

• Acceleration is the rate of change of velocity with respect to time.

• Acceleration is the force acting on an object.

• Acceleration is the speed of an object.

Explain the concept of inertia.

• The concept of inertia refers to an object's tendency to maintain its current state of motion.

• Inertia is the force that causes objects to move in a circular path.

• Inertia only applies to objects in motion.

• Inertia is the same as momentum.

What is the formula for calculating speed?

• Speed = Distance - Time

• Speed = Distance / Time

• Speed = Distance x Time

• Speed = Time / Distance

Describe the difference between mass and weight.

• Mass is the weight of an object, weight is the amount of matter in an object.

• Mass and weight are the same thing.

• Mass is measured in pounds, weight is measured in kilograms.

• Mass is the amount of matter in an object, weight is the force exerted on an object due to gravity.

What is the law of conservation of energy?

• Energy cannot be created or destroyed, only transferred or transformed.

• Energy can be destroyed completely

• Energy can be created out of nothing

• Energy can be transformed into matter

Define momentum.

• Momentum is the square of an object's mass.

• Momentum is the result of dividing mass by velocity.

• Momentum is the same as inertia.

• Momentum is the product of an object's mass and velocity.

Explain the concept of work in physics.

• Work in physics is the product of force and distance, expressed as work = force x distance.

• Work is only dependent on the force applied, not the distance.

• Work is the same as power in physics.

• Work is measured in volts in physics.

What is the formula for calculating kinetic energy?

• KE = m * v^2

• KE = 0.5 * m + v

• KE = 0.5 * m * v^2

• KE = m / v

Describe the relationship between force, mass, and acceleration.

• m = Fa

• F = am

• F = mx

• F = ma