1. Which of the following statement is TRUE?
A. An object that is at rest or is in motion moves at a constant velocity is not subject to any outside forces.
B. When the velocity of an object is equal to zero, it must be in balanced status.
C. If an object changes its status, it must be subject to outside forces.
D. The motion direction of an object must be the same as the direction of net force that exert on it.
2. Which of the following statement is TRUE? Inertia
A. There is no inertia when we walk, but there is inertia when we are fixed onto something, for example, riding a roller coaster.
B. An object has inertia when it must be subject to any outside force; when a force exerts on it, its inertia is overcome and then it changes its status.
C. Objects with greater
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iii. does work most.
B. ii. does work most.
C. They do work same.
D. Not certain.
18. About the friction and work, which of the following statement is TRUE?
A. Sliding friction always does negative work.
B. Sliding friction can do negative and positive work.
C. Static friction must do negative work on the object.
D. Static friction always does positive work on the object.
19. Which of the following statement is TURE?
A. The record of pole vault is 6m, which is much higher than the record of normal high jump; this is because gravitational potential energy of body changes to kinetic energy.
B. Pile driver piling uses kinetic energy instead of gravitational potential energy.
C. Modern large-scale hydropower plants change gravitational potential energy to kinetic energy to produce electricity.
D. A sled slid down from a mountain transfer kinetic energy to gravitational potential energy.
20. There is a small ball whose mass is m and it is moving on a flat, smooth surface, which has height H, at a velocity v. When it leaves the flat surface and rolls down along an inclined plane, it passes point A which height is h. When the small ball pass point A:
A. Its gravitational potential energy is mg
The biomechanical principle stability for a pirouette is primarily concerned with the center of mass
Whenever there is an interaction between two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force. Forces only exist as a result of an interaction .The forces in the motion of a running person are propulsion (this is the force applied onto the muscles for a forward motion causing acceleration, wind (this is the force put onto the runner by the wind [can cause acceleration or deceleration] depending on the direction), drag (this is the force of air resistance which can cause deceleration and gravity (witch effects everything it is keeping us for flouting around and why things hit the ground. In this assessment we used all three of newton’s law3 for example every object in a state of motion remains in that state of motion unless an external force is put onto it. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma and for every action there is an equal and opposite
That is to say, that the rock at the top of the tire may be going twice as fast as car itself. Similarly, at the point of contact of with the road, the velocity of the rock is 0.
The file labeled “Newton’s 2nd Law” is to be opened. The cart’s mass along with the attachment of the sensor and the accelerometer are to be measured and recorded. Being carefully verified in order, the track is leveled and the Force Sensor is set to 10N and connected to...
states that "a body immersed in a fluid is buoyed up by a force equal the weight
Centripetal force is a force that pulls an object moving in a circular path toward the center of its path. (1) Centripetal means it is a “center seeking” force.
This law is also often called “Inertia”. Inis the tendency for an object to resist the change in motion. Like, if you are moving and nothing happens to you, then you will keep moving. Forever. If nothing is happening to, and nothing is trying to put any type of force on you then nothing will happen .Forever. (Newton’s Three) There is a limit that must be met in order for the first law to be suitable to any given motion. The limit is represented by the phrase "... unless acted upon by an unbalanced force." As the long as the forces are balanced - the first law of motion
Air resistance and drag can either be proportional to the velocity or to the square of the velocity. Drag force will eventually counteract downward forces on an object in freefall, resulting in a terminal velocity. The acceleration of the object can be modeled by an exponential decay graph.
Bottle rockets are great models to examine Newton’s three laws of motion. The bottle rocket will remain on the ground until an unbalanced force, water, thrusts the rocket upward. This is defined by Newton’s first law of motion: an object at rest stays at rest or an object in motion, stays in motion (in the same direction/at the same speed) unless acted upon by an unbalanced force. It is also known as the law of inertia.
Second, the force providing the change in motion is primarily the result of a rapid change in acceleration of the objects involved (assuming the players’ individual masses remain constant.) If we are to a...
The acceleration of a body or object is directly proportional to the net force acting on the body or object and is inversely proportional to its mass. (F=ma)(Newman)
Most objects are made of matter with equal amounts of positive and negative charge. Objects with the same # of positive and negative charges are electrically balanced, or neutral. Electric force is observed only when the balance of charge on objects is disturbed.
In high school, English was my strongest and favorite subject. I never had to work as hard in English as I did in math or any other subjects I took in high school. My peers would cram all night for a Literature test we were going to have but not I. I excelled in writing essays about Moby Dick and his white Whale or Beowulf and Grendel. My confidence in my ability to write was always high and when I enrolled at Chattahoochee, I assumed my confidence would not waiver. When I received my grade for my first paper, I was in shock of all the red ink that covered it. English 1101 taught me the skills I needed to have to be able to write a great paper and prepared me for what was to come for English 1102. English 1102 have taught me to rethink my abilities as a writer and to work harder and spend more time on my essays and think outside the box.
I attended Mass at my local parish, the Parish of St. Francis de Sales, on Sunday, October 9th, in order to receive the Sacrament of the Eucharist. This also happens to be the 28th Sunday of Ordinary Time because the priest of the parish, Father Phan, wore green in order to symbolize life, anticipation for the coming of Christ, and hope. The liturgical season of Ordinary Time is also significant because it focuses on the fruits of Jesus’s three-year public ministry, his educational parables, and his extraordinary miracles. The season of Ordinary Time also serves as a reminder that the Church’s mission, our mission, is to not only share the life and hope of Jesus