Free Fall Acceleration

Front

What is free fall acceleration?

Back

Free fall acceleration is the acceleration of an object due only to the effect of gravity, typically denoted as 'g', which is approximately 9.81 m/s² on Earth.

Tags

NGSS.MS-PS2-4

Front

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

Back

The formula is d = 0.5 * g * t², where d is the distance, g is the acceleration due to gravity, and t is the time in seconds.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms (kg), while weight is the force exerted by gravity on that mass, measured in newtons (N). Weight can be calculated as W = m * g.

Front

How does free fall differ on Mars compared to Earth?

Back

Free fall on Mars is affected by its lower gravitational acceleration (approximately 3.71 m/s²) compared to Earth's 9.81 m/s², resulting in a slower fall.

Front

What is terminal velocity?

Back

Terminal velocity is the constant speed an object reaches when the force of gravity is balanced by the drag force of the medium through which it is falling.

Tags

NGSS.HS-PS2-4

Front

What is a velocity-time graph?

Back

A velocity-time graph plots an object's velocity against time, showing how the velocity changes over time.

Tags

NGSS.MS-PS3-1

Front

What does a horizontal line on a velocity-time graph indicate?

Back

A horizontal line indicates constant velocity, meaning the object is moving at a steady speed without acceleration.

Front

What is the significance of the area under a velocity-time graph?

Back

The area under a velocity-time graph represents the distance traveled by the object during that time interval.

Front

What is the kinematic equation for calculating final velocity?

Back

The kinematic equation is v = u + at, where v is final velocity, u is initial velocity, a is acceleration, and t is time.

Front

What is the effect of air resistance on free fall?

Back

Air resistance opposes the motion of falling objects, reducing their acceleration and potentially leading to terminal velocity.