Lego Mindstorms Flashcard

Front

What is acceleration? Acceleration is the rate at which an object's ______ changes over time.

Back

velocity

Front

Which of the following is the standard unit of measurement for acceleration? Options: meters per second (m/s), meters per second squared (m/s2), kilometers per hour (km/h), newtons (N)

Back

meters per second squared (m/s2)

Front

Which of the following is NOT an example of acceleration? A car speeding up, A ball rolling at constant speed, A ball slowing down as it rolls, A satellite orbiting the Earth

Back

A ball rolling at constant speed

Front

What two things does velocity measure? Fill in the blanks: Velocity is a measure of both an object's ______ and its ______.

Back

speed; direction

Front

Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.

Back

True

Front

The standard unit for velocity is ________.

Back

meters per second (m/s)

Front

What is free fall?

Back

The motion of an object under the sole influence of gravity.

Front

What is the approximate value of acceleration due to gravity (g) on Earth?

Back

9.8 m/s²

Front

In a scientific experiment, the __________ __________ is the factor that is intentionally changed or manipulated by the experimenter. It is the "cause" in a cause-and-effect relationship. For instance, if you are testing how different amounts of fertilizer affect plant growth, the amount of fertilizer is the independent variable.

Back

independent variable

Front

What is the formula for calculating velocity?

Back

v=d/t