Gravity and Projectile Motion (Ch. 7)

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between their centers.

Front

What is projectile motion?

Back

Projectile motion is the motion of an object that is thrown into the air and is subject to the force of gravity, following a curved path called a parabola.

Front

What is the shape of the path followed by a projectile?

Back

The path followed by a projectile is a parabolic arc.

Front

What factors affect the time of flight of a projectile?

Back

The angle of launch and the initial velocity of the projectile affect the time of flight.

Front

How does the angle of launch affect the range of a projectile?

Back

The optimal angle for maximum range in projectile motion is 45 degrees.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force between two objects increases with the mass of the objects.

Front

What happens to the speed of a projectile at the peak of its trajectory?

Back

At the peak of its trajectory, the vertical component of the projectile's velocity is zero, but the horizontal component remains constant.

Front

What is the effect of air resistance on projectile motion?

Back

Air resistance opposes the motion of the projectile, reducing its range and altering its path.

Front

What is the acceleration of a projectile in free fall?

Back

The acceleration of a projectile in free fall is approximately 9.81 m/s² downward, due to gravity.

Front

What is the difference between vertical and horizontal motion in projectile motion?

Back

Vertical motion is influenced by gravity, while horizontal motion is uniform and not affected by gravity.