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Is it true that forces are described by their strength and their speed?
Wiki User
∙ 14y ago
Well usually when you think about it, yes. For measuring Earth forces like Hurricanes, Tornadoes, Earthquakes, they all basically are measured by how strong they are and their speed. Each different type of force may have different terminology, but the basics are the same.
Wiki User
∙ 14y ago
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How is the strength of dispersion forces related to the number of electrons in a molecule?
strength = molar mass = number of electrons
Both electric fields and forces decrease in strength as the distance increases?
No. The electric force in this case decreases.
Is it true that their are no pulling forces between the particles in a gas?
No it is not true
Is the sympathetic division described as thoracolumbar?
True
Which of the statements is true A moving object which has no force acting on it keeps a steady speed OR A moving object which has no force acting on it will loose its speed?
The first statement is true. Force implies acceleration on an object. No acceleration means no change in velocity or change in speed. No acceleration means 0=dv/dt thus v=constant. The constant v can be positive, negative or zero. A. According to Newton's laws of motion, an object which has NO forces acting on it will continue to move at constant speed in the same direction forever. This seems wrong. But that's because (in our "normal" experience), just about every object is subjected to the forces of friction and air resistance - so moving objects do slow down...but they have forces acting on them - and your question is about objects with NO forces acting on them. Even objects out in space where there is no friction and air resistance are affected by gravity - so they don't move at a steady speed in a straight line either. The International Space Station orbits the earth because the earth's gravity forces it to move in a circle.
How is the strength of dispersion forces related to the number of electrons in a molecule?
strength = molar mass = number of electrons
Both electric fields and forces decrease in strength as the distance increases?
No. The electric force in this case decreases.
When going in a straight line at constant speed the forward and backwards forces are equal?
True.
Neutral posture is the optimal position of each joint to provide the highest strength speed and control?
true
If the forces acting on an object are balanced the objet may change speed change directions or do both?
true
Do you need constant force to produce constant speed?
Constant forces provide a constant speed. This is true on a basic physics level, you could argue and bring up examples but this is PHYSICS, it doesn't deal with real life. It's all mirrors and forces.
Is it true that when a constant force is applied to a body it moves a uniform acceleration?
Yes, that is true - assuming you are referring to the net force, i.e., the sum of all forces on an object. Please note that in practice, opposing forces such as air resistance may vary depending on speed.
if the forces acting on an object are balanced the object may change speed change direction or do both true or false?
If the forces acting on an object are balanced, then the object will do none of those things. The statement is false.
Is it true or false if two forces push or pull an object the object will move?
When one object pushes or pulls another object, the first object is ______ a force on the second object. exerting. Circle the letters of the two ways that forces are described.
When an item is traveling at a constant speed what must be true about the forces acting on that object?
You can't tell anything about them from the speed alone. Constant speed aloneisn't enough to tell that there are no forces on the object. The best example isa planet in a circular orbit around the sun. Its speed is constant, even thoughthere's a substantial gravitational force between it and the sun.When an item is traveling at a constant speed and also in a straight line, thenthe forces acting on it must either be nonexistent or must add up to zero.
A spacecraft orbits Earth at a constant speed.The forces actinbg on it must be?
There is only one force acting on an orbiting spacecraft ... the force of gravity.It's NOT correct to say that a constant speed in a curved path indicates balanced forces.That's true only when the constant speed is in a straight line. If the direction is changing,there must be net forces on the moving object, even if its speed is constant.
Landforms are made of forces that build and by forces that destroy?
True.
