Which best describes force?
It can be defined as a pull or push which creates or destroys the motion of a body, increases or decreases the speed of a body, or changes or tends to change the direction of motion of a body. Hence, the correct answer to the question is that force can be expressed as a push or pull.
Can parallel forces result in a negative force?
(d) left and downward forces that cancel each other out. (e) addition of parallel forces that cannot result in a negative force.
Which describes a force?
In physics, a force is any interaction that, when unopposed, will change the motion of an object. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.
Which statement could correctly explain the forces acting on the teeter totter assume that Jasper and Gemma are the same distance from one another?
When Jasper gets on, Gemma moves into the air, but she does not move to the top. Which statement could correctly explain the forces acting on the teeter totter? The forces are balanced because Jasper weighs the same as Gemma.
Which example best represents a balanced forces?
Here are some examples of situations involving balanced forces.
- Hanging objects. The forces on this hanging crate are equal in size but act in opposite directions.
- Floating in water. Objects float in water when their weight is balanced by the upthrust from the water.
- Standing on the ground.
Which force best represents FG?
means force exerted by gravity. It is defined as, in the universe energy object that has mass will exert a gravitational pull on another object that also has mass. This pull depends on the masses of objects. Thus, we can conclude that the weight of a barbell acting on a weight lifter is 80 N best represents Fg.
Which prediction will most likely describe how friction will affect her findings?
Which prediction will most likely describe how friction will affect her findings? The distance for Trial 3 will be greater than the distance for Trial 4 because the difference in surface roughness will affect friction.
Which represents the upward force perpendicular to the floor?
normal reaction force
What represents net force?
The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out.
How do I calculate normal force?
The weight of an object equals the mass of the object multiplied by the acceleration of gravity. Multiply the two values together. In order to find the normal force, you need to multiply the weight of the object by the cosine of the angle of incline.
What is Net moment of force?
It is the product of the force multiplied by the perpendicular distance from the line of action of the force to the pivot or point where the object will turn. If a uniform bar of mass 8 Kg is pivoted at one end, What is the net moment of force on the bar.
How is a moment calculated?
moment = force x perpendicular distance from turning point. You consider the weight of the aluminium beam to act through its centre of mass 2.5 m from either end, but it is 0.5 m from the steel rod which is effectively the pivot point on which you base your moment calculations.
What is the principle of moment?
The Principle of Moments. The Principle of Moments, also known as Varignon’s Theorem, states that the moment of any force is equal to the algebraic sum of the moments of the components of that force.
What are the two components of a moment?
It is defined as the product of the force (F) and the moment arm (d). The moment arm or lever arm is the perpendicular distance between the line of action of the force and the center of moments. The Center of Moments may be the actual point about which the force causes rotation.
What moment means?
The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This occurs every time a force is applied so that it does not pass through the centroid of the body. A moment is due to a force not having an equal and opposite force directly along it’s line of action.
What is SI unit of moment of couple?
Where, τ = moment of couple, F = magnitude of the force and d = perpendicular distance between the two parallel, opposite and equal forces. Now as we know that the S.I unit of force is Newton and S.I unit of distance is meter. So the S.I unit of moments of a couple is Newton-meter (N-m).
What is difference between couple and torque?
Torque is produced due to a single force. The turning effect produced is called torque or moment of force. Couple is produced due to two forces that are equal in magnitude but opposite in direction( unlike parallel forces) and do not have the same line of action.eg a double arm spanner or a steering wheel etc.
What is the SI unit of power?
What means couple?
1a : two persons married, engaged, or otherwise romantically paired. b : two persons paired together The people were lined up in couples. 2 : pair, brace needed a couple of bookends. 3 : something that joins or links two things together: such as. a : two equal and opposite forces that act along parallel lines.
What is another word for couple?
Couple Synonyms – WordHippo Thesaurus….What is another word for couple?
What do you call a beautiful couple?
»handsome couple exp. 13. »good together exp. 12. »good couple exp.
How do you say best couple?
My favorite couple. Blessings for you both. So amazing to see you, in-love together….Good comments for couple photos
- Love overloaded.
- This is what you can call a perfect pair.
- Stay strong.
- I just found ‘True Love’ here.
- I’ve seen the competing couple.
What word can I use instead of some?
What is another word for some?
|copious amounts of||endless|
|more than a few||quite a few|
How many is a some?
Some said it meant three or four. Or maybe more. The answer is that there is no hard-and-fast answer.
What can I say instead of kind?
- kindly, good-natured, kind-hearted, tender-hearted, warm-hearted, soft-hearted, good-hearted, tender, caring, feeling, affectionate, loving, warm, gentle, mellow, mild.
- considerate, helpful, thoughtful, obliging, unselfish, selfless, altruistic, good, cooperative, accommodating, attentive.