11E APPARENT WEIGHT IN LIFT /ELEVATOR

Front

What is apparent weight?

Back

Apparent weight is the weight of an object as perceived by an observer, which can differ from its actual weight due to acceleration or deceleration of the object, such as in an elevator.

Front

How does acceleration affect apparent weight in an elevator moving upwards?

Back

When an elevator accelerates upwards, the apparent weight of a person inside the elevator increases because the normal force acting on them increases.

Front

How does acceleration affect apparent weight in an elevator moving downwards?

Back

When an elevator accelerates downwards, the apparent weight of a person inside the elevator decreases because the normal force acting on them decreases.

Front

What is the formula to calculate apparent weight in an elevator?

Back

The apparent weight can be calculated using the formula: Apparent Weight = Actual Weight + (mass × acceleration of the elevator).

Front

If a person has a mass of 47.0 kg, what is their actual weight on Earth?

Back

The actual weight can be calculated using the formula: Weight = mass × gravitational acceleration (9.81 m/s²). For a 47.0 kg person, the actual weight is approximately 461 N.

Front

What happens to apparent weight when an elevator is in free fall?

Back

In free fall, the apparent weight becomes zero because both the person and the elevator are accelerating downwards at the same rate as gravity.

Front

What is the effect of constant velocity on apparent weight in an elevator?

Back

When an elevator moves at a constant velocity, the apparent weight remains equal to the actual weight because there is no acceleration acting on the person.

Front

What is the relationship between apparent weight and gravitational force?

Back

Apparent weight is a result of the gravitational force acting on an object, modified by any additional forces due to acceleration or deceleration.

Front

How does a decrease in elevator speed affect apparent weight?

Back

A decrease in elevator speed while moving upwards will cause a temporary decrease in apparent weight, while a decrease in speed while moving downwards will cause a temporary increase in apparent weight.

Front

What is the significance of the normal force in determining apparent weight?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it. It directly affects the apparent weight experienced by the object.