Understanding Apparent Weight in Elevators

What is the primary purpose of a free body diagram in the context of an elevator?

• To measure the height of the elevator shaft

• To determine the weight of the elevator

• To visualize all forces acting on a person

• To calculate the speed of the elevator

How does a scale in an elevator measure force?

• By measuring the force it exerts upwards

• By calculating the gravitational pull

• By assessing the mass of the person

• By determining the speed of the elevator

What does Newton's Second Law state in relation to forces?

• The net force is equal to the object's mass times its speed

• The net force is equal to the object's mass times its acceleration

• The net force is equal to the object's weight times its height

• The net force is equal to the object's volume times its density

What happens to the apparent weight when an elevator moves at a constant speed upwards?

• It remains the same

• It becomes zero

• It decreases

• It increases

How does upward acceleration affect the apparent weight of a person in an elevator?

• It has no effect

• It makes the person feel weightless

• It makes the person feel heavier

• It makes the person feel lighter

What is the apparent weight of a person in free fall inside an elevator?

• Less than their actual weight

• Zero

• Greater than their actual weight

• Equal to their actual weight

Why do astronauts in space feel weightless?

• Because they are moving at a high speed

• Because they are in a constant state of free fall

• Because they are far from Earth

• Because there is no gravity in space

What happens to the scale reading when an elevator accelerates downward at 19.6 m/s²?

• The scale reads the actual weight

• The scale reads a negative value

• The scale reads zero

• The scale reads double the actual weight

In extreme scenarios, how can a person stand on a scale in an elevator accelerating downward?

• By standing normally on the floor

• By standing on the ceiling

• By holding onto the walls

• By sitting on the floor

What challenge might pilots face related to apparent weight during flight?

• Difficulty in measuring altitude

• Confusion about the direction of flight

• Loss of communication with ground control

• Inability to control speed