phys: test review 2024 freefall/projectiles1

Front

What is the formula for average velocity?

Back

Front

How does gravitational pull affect the fall of an object on Earth compared to the Moon?

Back

A hammer falls faster on Earth than on the Moon because the gravitational pull on the Moon is about six times weaker than on Earth.

Front

What happens to the velocity and acceleration of an object thrown straight up at its highest point?

Back

At the highest point, the velocity is zero and the acceleration is maximum (equal to the acceleration due to gravity).

Front

Does vertical velocity change as a projectile rises and falls?

Back

Yes, vertical velocity changes as a projectile rises and falls due to the influence of gravity.

Front

What is the reaction time of a student if a meter stick falls 0.20 meters before being caught?

Back

The reaction time of the student is approximately 0.20 seconds.

Front

What is the effect of gravity on free-falling objects?

Back

Gravity causes all free-falling objects to accelerate downwards at a rate of approximately 9.81 m/s² on Earth.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the formula for calculating the distance traveled by an object under constant acceleration?

Back

Front

What is the significance of the highest point in projectile motion?

Back

At the highest point in projectile motion, the vertical component of velocity is zero, and the object begins to fall back down due to gravity.

Front

What is the formula for final velocity in terms of initial velocity, acceleration, and distance?

Back