Gravitational Field Strength Concepts

What is the primary effect of Earth's gravitational field on nearby objects?

• It has no effect on objects.

• It causes objects to float.

• It repels objects away from Earth.

• It accelerates objects towards Earth.

According to Newton's second law, what is the net force on an object equal to?

• The force of friction acting on it.

• The sum of all forces acting on it.

• The difference between gravitational and normal force.

• The product of its mass and acceleration.

What is the formula for gravitational force between two objects?

• G times the sum of the masses divided by distance.

• G times the product of the masses divided by distance squared.

• G times the product of the masses divided by distance.

• G times the difference of the masses divided by distance.

What is the approximate gravitational field strength at Earth's surface?

• 9.78 m/s²

• 6.67 m/s²

• 5.97 m/s²

• 10.24 m/s²

How does the gravitational field strength change as you move away from Earth's surface?

• It increases linearly.

• It remains constant.

• It decreases exponentially.

• It decreases with the square of the distance.

What is the gravitational field strength 5000 km above Earth's surface?

• 9.81 m/s²

• 3.07 m/s²

• 6.38 m/s²

• 5.97 m/s²

In the example problem, if the distance from the center of a planet doubles, what happens to the gravitational field strength?

• It decreases by a factor of four.

• It increases by a factor of four.

• It doubles.

• It remains the same.

If the gravitational field strength at a point is 40 N/kg, what will it be at double the distance?

• 5 N/kg

• 10 N/kg

• 40 N/kg

• 20 N/kg

What is the relationship between gravitational field strength and distance from the center of a planet?

• Inversely proportional to the distance.

• Directly proportional to the square of the distance.

• Inversely proportional to the square of the distance.

• Directly proportional to the distance.

What is the gravitational field strength at point B if it is 10,000 km from the center of a planet, given it is 40 N/kg at 5,000 km?

• 5 N/kg

• 10 N/kg

• 20 N/kg

• 40 N/kg