Conceptual Physics - Field Forces Review

What happens to the weight of an object as it falls toward Earth?

• Its weight decreases due to air resistance.

• Its weight stays the same, but the force of gravity acting on it remains constant.

• Its weight increases as it falls faster.

• Its weight fluctuates depending on the altitude.

Define weight in the context of physics.

• Weight is the mass of an object measured in kilograms.

• Weight is the force exerted by gravity on an object, calculated as mass times the acceleration due to gravity (W = mg).

• Weight is the amount of matter in an object, regardless of gravity.

• Weight is the measure of how much space an object occupies.

What happens to gravitational force (Fg) when mass is halved?

• Fg remains the same.

• Fg is doubled (2 times larger).

• Fg is halved (2 times smaller).

• Fg increases by 50%.

What is the acceleration due to gravity on Earth?

• 8.91 m/s²

• 9.81 m/s²

• 10.5 m/s²

• 9.00 m/s²

What is the difference between mass and weight?

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

• Mass and weight are the same; both refer to the quantity of matter in an object.

• Weight is the amount of matter in an object, while mass is the force of gravity acting on that matter.

• Mass is a measure of an object's volume, while weight is a measure of its density.

How do electric charges interact with each other?

• Like charges attract each other, while opposite charges repel.

• Like charges repel each other, while opposite charges attract.

• All charges attract each other regardless of their type.

• Electric charges do not interact with each other.

What is the effect of increasing the mass of one object in a gravitational interaction?

• It decreases the gravitational force between the two objects.

• It has no effect on the gravitational force.

• Increasing the mass of one object increases the gravitational force between the two objects.

• It only affects the speed of the objects.

On which planet does an astronaut weigh the most?

• Mars

• Earth

• Jupiter

• Venus

What is the principle of superposition in electric forces?

• The total electric force on a charge is the vector sum of all individual forces acting on it.

• The electric force is always attractive between two charges.

• The electric force can only be calculated using scalar quantities.

• The total electric force is the product of charge and distance.

What is the relationship between mass and gravitational force (Fg)?

• As mass increases, the gravitational force (Fg) also increases.

• Gravitational force decreases as mass increases.

• Gravitational force is independent of mass.

• Gravitational force is only affected by distance, not mass.