Phys Sem 1 (test, 70 quest.) V4 2023

Front

What is the term for the number of complete revolutions per second?

Back

Frequency

Front

If a fastball pitch travels at 40.0 m/s toward home plate, 18 m away, and the bat is moving toward the ball at 18.0 m/s, what is the displacement of the ball before getting hit?

Back

18.0 m

Front

When finding the maximum altitude for a projectile that returns to the same height, what must be done with the time?

Back

Cut the time in half

Front

What variable letter represents horizontal velocity?

Back

V_x

Front

How do you combine vectors that are at a right angle to each other using the lengths of the two sides?

Back

Pythagorean Theorem

Front

Define 'period' in the context of motion.

Back

The time taken for one complete cycle of motion.

Front

What is the formula for calculating the velocity of an object?

Back

Velocity = Displacement / Time

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.