Ch.10 pt 2

Question 1

T/F: A rocket is an appropriate example of a projectile.

Answer 1

False

Question 2

__ __ relates to the distance a projectile travels

Answer 2

Horizontal component

Question 3

__ __ relates to the maximum height achieved by a projectile

Answer 3

Vertical component

Question 4

__ influences the vertical, but not the horizontal, component of projectile motion of a body in free fall

Answer 4

The force of gravity

Question 5

It is customary to disregard air resistance in discussing and solving problems related to projectile motion because __.

Answer 5

effects of air resistance on the horizontal component of projectile motion are variable

Question 6

What are 3 mechanical factors that affect the trajectory of a projectile?

Answer 6

1.) the projection speed
2.) the angle of projection
3.) the relative height of projection

Question 7

A body in a free fall that is subject only to the forces of gravity and air resistance is called a __

Answer 7

projectile

Question 8

T/F: Horizontal and vertical components of a projectile are conditional, i.e, they are dependent on each other.

Answer 8

False

Question 9

In the context of projectile trajectory, __ is solely dependent on the angle of projection.

Answer 9

trajectory shape

Question 10

The highest point in the trajectory of a projectile is known as the __

Answer 10

apex or peak

Question 11

Because air resistance is disregarded in discussing and solving problems related to projectile motion, it allows __

Answer 11

treating the horizontal component as an unchanging quantity

Question 12

The flight path of a projectile is known as its __

Answer 12

trajectory

Question 13

When projection angle and other factors are constant for a projectile, the projection speed determines the __ of a projectile’s trajectory

Answer 13

length

Question 14

The direction at which a body is projected with respect to the horizontal is known as its __

Answer 14

angle of projection

Question 15

At the __ of the flight of a body through air, vertical velocity is zero

Answer 15

apex

Question 16

The __ of a projectile is its horizontal displacement while landing

Answer 16

range

Question 17

When projection velocity is constant, greater relative projection height translates to __

Answer 17

longer flight time and greater horizontal displacement of the projectile

Question 18

In kinematics, the magnitude of projection velocity is known as __

Answer 18

projection speed

Question 19

There are relationships among projection speed, height, and angle, such that when one is shifted closer to what would theoretically be optimal, another moves farther away from optimum. Why is this statement true?

Answer 19

because human anatomy dictates certain constraints on real-life application of theories

Question 20

A projectile’s range is __

Answer 20

the product of it horizontal speed and flight time

Question 21

The difference between projection height and landing height of a projectile is known as its __ __ __

Answer 21

relative projection height

Question 22

T/F: When the human body is the projectile during a jump, high takeoff speed serves to constrain the projection angle that can be achieved.

Answer 22

True