Final Physics Review

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is measured in meters per second squared (m/s²).

Front

How do you calculate distance when acceleration is uniform?

Back

Distance can be calculated using the formula: Distance = Initial Velocity × Time + 0.5 × Acceleration × Time².

Front

What is kinetic energy (KE)?

Back

Kinetic energy is the energy of an object due to its motion, calculated using the formula: KE = 0.5 × mass × velocity².

Front

What is potential energy (PE)?

Back

Potential energy is the energy stored in an object due to its position or height, calculated using the formula: PE = mass × gravity × height.

Front

What is the principle of conservation of mechanical energy?

Back

The total mechanical energy (kinetic + potential) in a closed system remains constant if only conservative forces are acting.

Front

How do you find the resultant velocity of two vectors?

Back

The resultant velocity can be found using vector addition, which involves combining the magnitudes and directions of the individual velocities.

Front

What is the formula for total mechanical energy?

Back

Total mechanical energy = Kinetic Energy + Potential Energy.

Front

What happens to the potential energy of an object as it falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, keeping the total mechanical energy constant.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance opposes the motion of falling objects, causing them to fall slower than they would in a vacuum.

Front

What is uniform motion?

Back

Uniform motion occurs when an object moves at a constant speed in a straight line.