Review: 1st Semester Physics

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is a vector quantity, meaning it has both magnitude and direction.

Front

How do you calculate acceleration?

Back

Acceleration (a) can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed as F = ma.

Front

What is the formula for calculating net force?

Back

Net force (F) can be calculated using the formula: F = mass (m) × acceleration (a).

Front

What happens when an object experiences unbalanced forces?

Back

When an object experiences unbalanced forces, it will change its state of motion, which can include changing speed, changing direction, or starting to move.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

How does mass affect acceleration?

Back

According to Newton's 2nd Law, for a given force, an increase in mass will result in a decrease in acceleration.

Front

What is Newton's 3rd Law of Motion?

Back

Newton's 3rd Law states that for every action, there is an equal and opposite reaction.

Front

What is the relationship between force, mass, and acceleration?

Back

The relationship is defined by Newton's 2nd Law: F = ma, meaning force equals mass times acceleration.

Front

How do you determine the change in kinetic energy?

Back

The change in kinetic energy can be determined by calculating the difference between the final and initial kinetic energy: ΔKE = KE_final - KE_initial.