Free Fall and Motion

Front

Define Speed

Back

The measurement of the rate of change of position with respect to time.

Front

What happens to the acceleration of an object in free fall as it falls to the ground?

Back

The acceleration remains constant.

Front

How far does an object fall in free fall after 3.5 seconds?

Back

61.25 m.

Front

What is the vertical velocity of a ball dropped off a cliff after 1, 2, 3, 4, and 5 seconds (assuming g is 10 m/s²)?

Back

10, 20, 30, 40, 50 m/s.

Front

What happens to the velocity of a baseball thrown up into the air as it rises?

Back

The velocity decreases.

Front

Define Free Fall.

Back

The motion of an object under the influence of gravitational force only.

Front

What is the acceleration due to gravity on Earth?

Back

9.81 m/s².

Front

Explain the difference between speed and velocity.

Back

Speed is a scalar quantity representing how fast an object is moving, while velocity is a vector quantity that includes direction.

Front

What is the formula to calculate the distance fallen in free fall?

Back

d = 0.5 * g * t², where g is the acceleration due to gravity and t is time.

Front

What is terminal velocity?

Back

The constant speed an object reaches when the force of gravity is balanced by the drag force.