Inv3.Exp2 Text A Flashcard

Front

What is the formula to calculate distance traveled?

Back

Distance = Speed × Time

Front

What is the average distance Earth is from the Sun?

Back

Approximately 93 million miles (150 million km).

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit time.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time

Front

What is Newton's Law of Universal Gravitation?

Back

Every point mass attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What is the significance of the moon's synchronous rotation?

Back

The moon's rotation period equals its orbital period, causing the same side to always face Earth.

Front

What is the concept of inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

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 gravitational force?

Back

The attractive force between two masses, which depends on their masses and the distance between them.

Front

What is the role of gravity in planetary motion?

Back

Gravity keeps planets in orbit around the sun and governs their motion.