Unit 3.5 Free Fall

Front

What is terminal velocity?

Back

Terminal velocity is the constant speed that a freely falling object eventually reaches when the resistance of the medium (air) prevents further acceleration.

Front

What is the standard acceleration due to gravity near the Earth's surface?

Back

The standard acceleration due to gravity is 9.8 m/s².

Front

Do heavier objects fall faster than lighter objects in a vacuum?

Back

No, all objects fall at the same rate in a vacuum regardless of their mass.

Front

What is the vertical velocity of an object at its highest point when thrown straight up?

Back

The vertical velocity at the highest point is 0 m/s.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance opposes the motion of falling objects and can affect their acceleration and terminal velocity.

Front

What happens to the speed of a falling object as it falls through the air?

Back

Initially, the speed increases until it reaches terminal velocity, where it remains constant.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.

Front

What is the relationship between mass and weight?

Back

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

Front

What is gravitational acceleration?

Back

Gravitational acceleration is the acceleration of an object due to the force of gravity, typically 9.8 m/s² on Earth.

Front

What is the difference between mass and weight?

Back

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