Physics Final Exam Review

Front

What is the formula to calculate the speed of a falling object after a certain time?

Back

The speed of a falling object can be calculated using the formula: v = g * t, where v is the speed, g is the acceleration due to gravity (approximately 9.8 m/s² on Earth), and t is the time in seconds.

Front

What is the horizontal component of a projectile's velocity?

Back

The horizontal component of a projectile's velocity can be calculated using the formula: v_x = v * cos(θ), where v is the initial velocity and θ is the angle of launch.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately -9.8 m/s².

Front

What is the difference between mass and weight?

Back

Mass is a measure of the amount of matter in an object (measured in kilograms), while weight is the force exerted by gravity on that mass (measured in newtons). Weight can change depending on the gravitational field.

Front

How do you calculate the force acting on an object?

Back

Force can be calculated using Newton's second law: F = m * a, where F is the force, m is the mass of the object, and a is the acceleration.

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy (KE) is KE = \frac{1}{2}mv^2, where m is the mass of the object and v is its velocity.

Front

What is the formula for potential energy?

Back

The formula for gravitational potential energy (PE) is PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height above the reference point.

Front

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

Back

According to Newton's second law, the relationship is given by F = m * a, meaning that force is the product of mass and acceleration.

Front

What is projectile motion?

Back

Projectile motion is the motion of an object that is thrown or projected into the air, subject to the force of gravity, resulting in a curved trajectory.