Gravity & Circular Motion Review

Front

What is centripetal force?

Back

Centripetal force is the net force that acts on an object moving in a circular path, directed toward the center of the circle.

Front

What direction does the centripetal force act on an object in circular motion?

Back

The centripetal force acts directed toward the center of the circular path.

Front

How do you calculate centripetal acceleration?

Back

Centripetal acceleration (a_c) can be calculated using the formula: a_c = v²/r, where v is the speed and r is the radius of the circular path.

Front

What happens to centripetal acceleration if the speed of an object in circular motion doubles?

Back

If the speed doubles, the centripetal acceleration increases by a factor of four, since it is proportional to the square of the speed.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force between two objects increases as the mass of either object increases.

Front

What two factors affect the gravitational force between two objects?

Back

The two factors are mass and distance between the objects.

Front

What is the formula for gravitational force?

Back

The gravitational force (F) can be calculated using the formula: F = G * (m1 * m2) / r², where G is the gravitational constant, m1 and m2 are the masses, and r is the distance between their centers.

Front

What is the value of gravitational acceleration on Earth?

Back

The value of gravitational acceleration on Earth is approximately 9.8 m/s².

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

How does distance affect gravitational force?

Back

As the distance between two objects increases, the gravitational force between them decreases.