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How do you find a common denominator of a fractions?
you multipy the smaller denomnater to equal the other fraction and multipy the numarter by the same number as the denomneter got multiplied by
What is it called when you multipy or divide two quantities by the same number?
Re-scaling or (for selected vales of the same number) normalising.
Weight x distance divided by time?
Weight has same dimension and unit as force. Distance has same dimension and unit as displacement. So weight * distance has same dimension and unit as force * displacement. Force * displacement is work done by the force. Work divided by time to do the work is Power. So weight * distance divided by time also has same dimension and unit as Power although it is not power. S.I. unit of weight * distance divided by time is Newton *meter/second or Nms-1 (in abbr.) It's dimensions are 1, 2, -3 in mass, length and time respectively. Note that given quantity's unit can't be joule/second or watt because weight * distance is not work done, only unit and dimension are same1 . 1. Two physical quantities may have same dimensions and units but that doesn't mean they refer to same quantity.
How does an incline plane make work easier but does not increase in force?
An inclined plane makes work easier because it allows for a longer distance over which a force can be applied. By exerting a smaller force over a longer distance, the amount of work required is reduced. However, the force exerted remains the same, as the incline does not change the magnitude of the force needed.
How do you make a mixed number to an improper fraction fraction?
multipy the whole number by the denometer, then add that number to your numerator. now that is your numerator and your denomater stays the same.
Why do machines the less force to do the same amount of work?
Because machines allow force to be applied over a greater distance.
Can a machine be a force and distance multiplier at the same time?
Yes, a machine can be a force and distance multiplier at the same time. Machines like levers and pulleys are designed to increase force and/or distance in order to make work easier. By changing the arrangement of components, machines can amplify both force and distance simultaneously.
Do machines increase distance over which force acts?
Machines do not increase the distance over which a force acts. Machines simply allow us to apply a force over a longer distance, but the total work done remains the same. The mechanical advantage of a machine may amplify input force, but the distance over which the force acts remains constant.
How do machines such as levers reduce the force needed to lift heavy objects?
Machines like levers allow the input force to be applied over a longer distance, which reduces the amount of force needed to lift a heavy object. By increasing the distance from the fulcrum where the force is applied, levers can amplify the force applied. This principle is known as mechanical advantage.
How do you multipy a fraction?
you multipy a fraction by taking a number and mulitiply the same number to the numerator and denominator and get ur answer
What are the names of the machines that can increase or multiply work?
Machines that can increase or multiply work are called simple machines. Some examples of simple machines include levers, pulleys, inclined planes, screws, wedges, and wheels and axles. These machines allow us to apply a smaller force over a longer distance to accomplish a larger amount of work.
How does a simple machine decrease the input force required?
A simple machine can decrease the input force required by increasing the distance over which the force is applied. This allows for the same amount of work to be done with less force. Examples of simple machines that achieve this include levers, pulleys, and inclined planes.
Is ft pounds the same as pounds ft?
Yes. It is (force x distance) or (distance x force). Same thing.
Is force perform works?
Force can perform work when it acts on an object and causes it to move in the direction of the force. Work is calculated by multiplying the force applied by the distance moved in the direction of the force. If the force and the displacement are in the same direction, work is done.
How do you find a common denominator of a fractions?
you multipy the smaller denomnater to equal the other fraction and multipy the numarter by the same number as the denomneter got multiplied by
What machines can change the direction of a force?
Some machines that can change the direction of a force include pulleys, levers, gears, and ramps. These machines can redirect the applied force to achieve a specific mechanical advantage or desired output.
Do we do less work if we use simple machines?
Simple machines make work easier by reducing the amount of force or effort required to perform a task, but they do not reduce the total amount of work done. The work input and output remain the same; however, simple machines allow us to distribute the work over a longer distance or apply the force in a more convenient direction.
