Physics Elevator Flashcard

Front

What is the apparent weight of a person in an elevator moving upward with constant velocity?

Back

The apparent weight remains equal to the actual weight when moving at constant velocity.

Front

Define Normal Force.

Back

The force exerted by a surface to support the weight of an object resting on it.

Front

What do occupants experience if an elevator's cable snaps?

Back

Weightlessness, as they would be in free fall.

Front

What happens to the apparent weight of occupants when an elevator accelerates upward?

Back

The apparent weight increases.

Front

Calculate the tension in the elevator cable if a 70 kg person accelerates downward at 5 m/s² and has an apparent weight of 420 N.

Back

The tension in the cable is 500 N.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.81 m/s².

Front

Explain the concept of apparent weight.

Back

Apparent weight is the weight an object seems to have when in a non-inertial frame of reference, such as an accelerating elevator.

Front

What is the difference between mass and weight?

Back

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

Front

What happens to the normal force when an elevator accelerates downward?

Back

The normal force decreases.