Gravitational Forces

Front

True or False: The gravitational force each tennis ball acts on the other is the same.

Back

True

Front

The amount of attraction between two objects which are not in contact with each other is known as the _________.

Back

Gravitational force

Front

What would the gravitational force be between the Sun and Mars if they were 2.3*10^11 m apart? The masses for the Sun and Mars are 1.99*10^30 kg and 6.42*10^23 kg, respectively.

Back

F_g = 1.6*10^21 N

Front

Which of the following changes would increase the gravitational force between two objects? Increase G, Increase the mass, Increase r, Decrease G.

Back

Increase the mass

Front

Calculate the gravitational force between a 15-kg chinchilla and a 65-kg dog which are separated by 0.30 m.

Back

F_g = 7.2*10^-7 N

Front

What is the formula for calculating gravitational force between two masses?

Back

F_g = G * (m1 * m2) / r^2

Front

What does the variable 'G' represent in the gravitational force formula?

Back

G is the gravitational constant, approximately 6.674 × 10^-11 N(m/kg)^2.

Front

What happens to gravitational force if the distance between two objects is doubled?

Back

The gravitational force decreases by a factor of four.

Front

What is the relationship between mass and gravitational force?

Back

Gravitational force is directly proportional to the product of the masses of the two objects.

Front

If the mass of one object is tripled, how does that affect the gravitational force?

Back

The gravitational force also triples.