Science Quiz Practice Set Flashcards
Motion
the change in position of an object with respect to its surroundings in a given interval of time.
Scalar
physical quantity that is completely described by its magnitude
Vector
an object that has both a magnitude and a direction
Displacement
the change in position of an object
Speed
The rate of change of position of an object in any direction
Velocity
the speed at which something moves in a particular direction
Acceleration
The rate of change of velocity with respect to time
An object at rest stays at rest, and an object in motion stays in motion unless acted upon unbalanced force
Inertia (1st law)
For every action, there is an equal and opposite reaction
Action reaction (3rd law)
of an object is directly proportional to the net force acting on the object inversely proportional to its mass
Acceleration (2nd law)
An object’s position changes along a single axis like a straight line, either horizontal or vertical.
1 Dimension
An object moving within a plane along the X and Y axis at the same time, has a parabolic path
2 Dimensional
The object undergoing motion
Projectile
Path of a projectile
Trajectory
The angle at which the projectile is launched relative to the horizontal.
Angle release/Launched angle
The curved path that the projectile follows
Trajectory
Highest vertical point reached by the projectile. The vertical velocity is equal to 0
Maximum height
The horizontal distance traveled by the projectile from its launched point to where it lands
Range
Horizontal and vertical component is independent of each other, Vx is always constant, acceleration is always equal to 0, Vy changes due to gravity
Non-angled Projectile motion (horizontal projectile motion)
Projectile is launched at an angle greater than 0 degrees and less than 90 degrees, forms a symmetrical parabolic curve.
Angled Projectile motion
Neglects Air resistance,
Constant horizontal velocity,
Acceleration = 0 (horizontally)
Horizontal distance = Range
Horizontal motion (Non-angled)
Force acting upon this motion is the force of gravity,
Vertical velocity is not constant,
Vertical distance = height
Vertical motion
Any object that continues in motion by its own inertia and is influenced only by the downward force of gravity and air resistance
Projectile
An object in free fall and is only acted on by gravity
Vertical motion
Force acting upon a projectile m?
Gravity
Expressing the orientation of a projectile to be projected
Angle
- V x/y
- tT & t
- Vi x/y
- θ
- g
- m/s
- m
- VR
- Vf x/y
- d x/y
- a x/y
- Velocity
- Total time & time
- Initial time horizontal/vertical
- angle
- Gravity (9.8m/s^2)
- Meters per second (Velocity)
- Meters (height)
- Velocity Ratio
- Final Velocity horizontal/vertical
- Distance
- Acceleration horizontal/vertical
The angle between the initial velocity of an object from a horizontal plane through which the object is thrown
Angle of projection
Time taken to reach the peak from the starting point down to the ending point.
Total time of flight
Angle that results in the greatest range
45 degrees
2 angles that add up to 90 degree are called?..
Complementary angles
