1-D Test Review

Front

What is average velocity?

Back

Average velocity is the total displacement divided by the total time taken. It is a vector quantity, meaning it has both magnitude and direction.

Front

What measurements are needed to calculate average velocity?

Back

To calculate average velocity, you need the displacement and the time taken.

Front

What is the formula for calculating distance when acceleration is involved?

Back

The formula is d = vit + ½ at², where d is distance, vi is initial velocity, a is acceleration, and t is time.

Front

What is the difference between scalars and vectors?

Back

Scalars have only magnitude (e.g., speed), while vectors have both magnitude and direction (e.g., velocity).

Front

What happens to the time it takes for an object to fall when dropped from different heights?

Back

The time values will be about the same regardless of the object's mass, assuming no air resistance.

Front

What is the formula for final velocity in terms of initial velocity, acceleration, and time?

Back

The formula is vf = vi + at, where vf is final velocity, vi is initial velocity, a is acceleration, and t is time.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time. It can be positive (speeding up) or negative (slowing down).

Front

What is the significance of measuring the height of a ramp in an experiment?

Back

The height of the ramp affects the potential energy and thus the final speed of the object rolling down.

Front

What is the formula for calculating average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is the role of time in calculating velocity?

Back

Time is essential in calculating velocity as it is used to determine how fast an object is moving over a specific distance.