Circular Motion/Universal Gravitation

Front

What are the two factors affecting the magnitude of the force of gravity between two objects?

Back

Mass and distance.

Front

What is Newton's Law of Gravitation?

Back

F = Gm₁m₂/r²

Front

Calculate the centripetal force required to make a 5 kg ball move at 4 m/s in a circle with a radius of 2 m.

Back

40 N

Front

Calculate the velocity of an object moving around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

Back

2.4 m/s

Front

What is the gravitational pull between two masses of 8000 kg and 1500 kg that are 1.5 m apart?

Back

0.0003 N

Front

Define centripetal force.

Back

Centripetal force is the force required to keep an object moving in a circular path, directed towards the center of the circle.

Front

What is the formula for centripetal acceleration?

Back

a = v²/r, where v is the velocity and r is the radius.

Front

What does the gravitational constant (G) represent in Newton's Law of Gravitation?

Back

G is the universal gravitational constant, approximately equal to 6.674 × 10⁻¹¹ N(m/kg)².

Front

Explain the relationship between mass and gravitational force.

Back

The gravitational force between two objects increases with the mass of the objects.

Front

What is the effect of distance on gravitational force?

Back

The gravitational force decreases as the distance between two objects increases.