Physics Semester Exam Review Part 2

Front

What does it mean that acceleration is independent of mass?

Back

Acceleration of an object in free fall is the same regardless of its mass, as demonstrated by objects like an apple and a watermelon falling simultaneously.

Front

How do you calculate the vertical component of a projectile's velocity?

Back

Use the formula: V_y = V * sin(θ), where V is the initial velocity and θ is the angle of projection.

Front

How do you calculate the horizontal component of a projectile's velocity?

Back

Use the formula: V_x = V * cos(θ), where V is the initial velocity and θ is the angle of projection.

Front

What are the two directions in which projectiles move?

Back

Projectiles move in horizontal and vertical directions.

Front

What is the head-to-tail method in vector addition?

Back

The head-to-tail method involves placing the tail of one vector at the head of another to find the resultant vector.

Front

What is the Pythagorean theorem used for in physics?

Back

The Pythagorean theorem is used to calculate the magnitude of the resultant vector when two perpendicular vectors are added.

Front

What is the significance of the angle in projectile motion?

Back

The angle of projection affects the range, height, and time of flight of the projectile.

Front

What is the formula for calculating the range of a projectile?

Back

Range (R) = (V^2 * sin(2θ)) / g, where V is the initial velocity, θ is the angle of projection, and g is the acceleration due to gravity.

Front

What is the acceleration due to gravity?

Back

The acceleration due to gravity (g) is approximately 9.81 m/s² near the surface of the Earth.

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude (e.g., mass, temperature), while vector quantities have both magnitude and direction (e.g., velocity, force).