p6 finals

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1
Is the measure of the turning effect of a rigid body. zit is operationally defined as the produc of a perpendicular force and the length of its lever arm from the pivot or axis of rotation.
Torque
2
Is a measure of a distance from the force applied to the pivot.
Lever arm
3
True or False: When lever arm is longer, the more Torque can be extended.
True
4
If the force causing the rotation is clockwise, Torque is ???
Negative Torque
5
If the force causing rotation is counterclockwise rotation, then Torque is ???
positive
6
What law motion states that unless hindered by an external force, a rigid body rotating about a fixed axis will remain rotating at the samebrste within the same axis.
Newton's 1st law firm motion
7
Also known as the rotational inertia, is defined as the quantity that resists changes in an object's rotational state of motion.
Moment of Inertia
8
I=mr²
Moment of inertia
9
True of False: The heavier the object, the harder it is to rotate/stop to rotate. The longer the radius, the heavier it is to rotate/stop to rotate.
True
10
True or False: If the summation of forces and Torques in a system is equal to one, then we can say that complete equilibrium is attained.
False
11
Is the motion of a body about an internal axis.
Rotational motion
12
The axis of the motion outside the object, we call it orbit.
Circular motion
13
The axis of the motion inside the moving object.
Rotary Motion
14
Is defined as the time rate of angular displacement.
Angular Velocity
15
Is the angle about the axis of rotation through which the object turns.
Angular Displacement
16
The uniform rate of change in Velocity is known as angular acceleration.
Angular Acceleration
17
True or False: The angular acceleration, a, is directly proportional to the Torque, T, but inversely proportional to the rotational Inertia, I.
True
18
In linear motion, a body moving at certain Velocity has a momentum, p, equal to the product of its mass and Velocity.
Angular momentum
19
Is a principle in physics that states that te total angular Moment of a system remains constant unless acted upon by an external Torque.
Law of conversion of angular momentum
20
This law extends gravity beyond earth.
Newton's law of universal gravitation
21
Value of G(universal gravitation constant) ?
6.67x10-¹¹Nm²/kg²
22
Is a constant of proportionality equal to the force of attraction between two objects of masses 1 kg each and are separated by a distance of 1 m.
Universal gravitational constant
23
Value of the mass of earth?
5.97x10²⁴kg
24
Is the gravitational force per unit mass.
Gravitational field
25
Gravitational field strength of the earth is??
9.8 N/kg which is equivalent to 9.8 m/s²
26
U=Gmem
Gravitational potential energy
27
Perigee
362, 570, 000 m
28
Apogee
405, 410, 000 m
29
In the early 1600s, He proposed three laws of planetary motion.
Johannes Kepler
30
Sometimes referred to as the law of ellipses or law of ??? — explains that plamets are orbiting the sun in a path described as an ellipse.
Kepler's first law, law of orbits
31

Sometimes referred to as the law of equal areas — describes the speed at which any given planet will move while orbiting the sun.
Kepler's second law
32
Sometimes referred to as the law of harmonies or law of ??— compares the orbital period and radius of orbit of a planet to those of other planets.
Kepler's third law, law of periods
33
1 au
-1.4957x10¹¹m
34
Is an oscillatory motion experienced by an object displaced by a force from an equilibrium position.
Simple harmonic motion
35
The maximum displacement attained by the body on either side of the equilibrium is its ??
amplitude
36
The total number of vibrations per unit time is called
frequency
37
The time for one complete vibration is called
period of motion
38
consists of a bon of relatively large mass hanging on a string with negligible mass.
simple pendulum
39
refers to an object which oscillates back and forth, in contrast to the rather idealized simple pendulum where all the mass is concentrated in a single point.

physical pendulum
40
When a disk is displayed I'm such a way that there is a restoring torque, we have a ???
torsion balance
41
Is the repeated to and from the movement of a system from its equilibrium position.
Oscillatory motion
42
If this system is displaced a little from its fixed point, a force acts on the system which tries to bring back back system to its fixed point. This force if the ??? and it gives rise to oscillation or vibrations.
Restoring force
43
Is the decrease in amplitude of an oscillation as a result of energy being drained from the system to overcome frictional or ther resistive forces.
Damping
44
Are those oscillatory motions where their amplitude remains the same or constant.
Undamped oscillations
45
Are those oscillatory motion where it's amplitude decreases with time until it achieves the state of equilibrium.
Damped oscillationz
46
In which the dmaoing of an oscillator causes it to return to equilibrium with the amplitude gradually decreasing to zero
Underdamped condition
47
In which the dmaoing of an oscillator causes it to return as quickly as possible to its equilibrium position without oscillating back and forth about this position.
critically damped condition
48
In which damping of a oscillator causes it to return to equal without oscillating
over-damped condition
49
Is a disturbance in a medium that carries energy without particles being moved.
wave
50
are defined as waves that needed any type of medium for propagation.
Mechanical wave
51
Is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves. It's is always characterized by particle motion being parallel to wave motion.
Longitudinal wave
52
Is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.
Transverse wave
53
Is an oscillation, such as a sound wave or alternating current, whose waveform is that of a sine curve.
sine wave
54
The distance sound travels during one periodm regardless of frequency.
Wavelength
55
The speed àt which a wave is moving moving traveling.
Wave speed
56
Is also known as propagation number or angular wavenumber. it is defined as the number of wavelengths per unit distance.
wavemunber
57
A point light source will spread its energy equally in all directions.
Inverse square law
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