sci #1

Question 1

is a fundamental concept in classical mechanics that describes the motion of an object when its velocity changes at a constant rate.

Answer 1

Uniformly accelerated motion

Question 2

occurs when an object’s velocity changes by the same amount in equal intervals of time.

Answer 2

• Uniformly accelerated motion

Question 3

In uam, This means the object’s acceleration ___

Answer 3

remains constant.

Question 4

It’s the rate of change of velocity.

Answer 4

Acceleration

Question 5

In uniformly accelerated motion, acceleration is ______

Answer 5

constant

Question 6

It’s the rate of change of displacement.

Answer 6

Velocity

Question 7

In this type of motion, velocity changes _______

Answer 7

linearly with time.

Question 8

It’s the change in position of an object.

Answer 8

Displacement

Question 9

How to get final velocity

Answer 9

v = u + at

Question 10

how to get displacement

Answer 10

s = ut + 1/2 at²

Question 11

How to get uam

Answer 11

v² = u² + 2as

Question 12

• Free fall: An object falling under the influence of gravity (neglecting air resistance) experiences uniformly accelerated motion.

• A car accelerating at a constant rate: When a car increases its speed at a steady pace, it’s undergoing uniformly accelerated motion.

• An object sliding down a frictionless inclined plane: The object’s velocity increases at a constant rate due to gravity.

Answer 12

[Study]

Question 13

Direction is important. Acceleration can be _____

Answer 13

positive (speeding up) or negative (slowing down).

Question 14

It’s crucial to use _____ for all variables.

Answer 14

consistent units

Question 15

• These equations apply to motion in ____

Answer 15

a straight line.

Question 16

is focused on uniformly accelerated motion that occurs along a horizontal plane. This means the object’s acceleration is constant, and its movement is in a straight line along the x-axis.

Answer 16

UAM in horizontal dimension

Question 17

o The acceleration value remains the same throughout the motion.
o This acceleration causes the object’s horizontal velocity to change at a steady rate.

Answer 17

Constant Horizontal Acceleration

Question 18

o The object moves along a horizontal axis (like a level road or surface).

Answer 18

Straight-Line Motion

Question 19

we’re referring to uniformly accelerated motion that occurs along a vertical axis. The most common and significant example of this is motion under the influence of gravity, often referred to as “free fall.”

Answer 19

UAM Vertical Dimension

Question 20

o It is very important to keep track of the direction of the acceleration, and velocity. Using positive and negative signs to denote the direction of those vectors.

Answer 20

Direction

Question 21

o Uniform horizontal acceleration occurs when the net force acting on the object in the horizontal direction is constant.

Answer 21

Net Force

Question 22

o If friction is constant, it will result in a constant negative acceleration (deceleration).

Answer 22

Friction

Question 23

o The acceleration is constant and primarily due to gravity. Near the Earth’s surface, this acceleration is approximately 9.8 m/s² (or 32 ft/s²) downward.
o This value is often represented by the symbol “g.”

Answer 23

Constant Vertical Acceleration:

Question 24

o The object moves along the y-axis (up and down).

Answer 24

Vertical Motion

Question 25

o Gravity is the dominant force causing the acceleration. o Therefore, the acceleration is always directed downward.

Answer 25

Influence of Gravity

Question 26

A special case where the only force acting on the object is gravity (neglecting air resistance).

Answer 26

Free Fall

Question 27

o In real-world situations, air resistance can significantly affect vertical motion.

Answer 27

Air Resistance

Question 28

o It's crucial to establish a consistent sign convention (e.g., upward as positive, downward as negative) when applying the equations of motion.

Answer 28

Direction

Question 29

is a fundamental concept in physics that describes the path of an object thrown or launched into the air, subject only to the acceleration of gravity.

Answer 29

Projectile motion

Question 30

o The path followed by a projectile is called its trajectory. In ideal scenarios (neglecting air resistance), this trajectory is a parabola.

Answer 30

Trajectory

Question 31

In the absence of air resistance, the horizontal velocity remains constant.

Answer 31

Horizontal Motion

Question 32

In real-world scenarios, air resistance plays a significant role, affecting the trajectory and range of the projectile.

Answer 32

Air Resistance

Question 33

The constant downward acceleration due to gravity.

Answer 33

Gravity

Question 34

The angle at which the projectile is launched relative to the horizontal.

Answer 34

Launch Angle:

Question 35

The speed and direction at which the projectile is launched.

Answer 35

Initial Velocity