Motion & Mechanics

A:

The distance a bullet travels is entirely dependent on the gun from which it is fired. The muzzle velocity and maximum range of a specific weapon both need to be taken into account in order to calculate how far a bullet travels after being fired.

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  • What kind of friction occurs as a fish swims through water?

    Q: What kind of friction occurs as a fish swims through water?

    A: When a fish swims through water, it experiences drag caused by fluid friction. To swim successfully, a fish must use its strength to overcome resistance caused by friction. In clear waters, the water is quite thin, making swimming easier, but in murky waters, fish experience more friction, making swimming difficult.
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  • What are the different types of force?

    Q: What are the different types of force?

    A: Forces are broadly classified into two categories: contact forces, which are required to make contact with the object in order for them to work, and action-at-a-distance forces, which can act on objects placed at a distance. Contact forces include applied force, frictional force, normal force, spring force, tension force and air resistance. Action-at-a-distance forces include gravitational force, magnetic force and electrical force.
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  • What are pulleys used for?

    Q: What are pulleys used for?

    A: A pulley is a simple tool that can be used for many things, such as lifting heavy objects or to change the direction of applied forces for various means. A pulley is a very simple tool that consists of a wheel on a fixed axle that has grooves for keeping a rope or wire in place. This makes pulleys useful for lifting heavy objects using applied human force.
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  • What is the conclusion of projectile motion?

    Q: What is the conclusion of projectile motion?

    A: Projectile motion is concluded when a projectile stops moving. Assuming nothing gets in the way, that conclusion is reached when the projectile comes to rest on the ground.
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  • How does a pulley system work?

    Q: How does a pulley system work?

    A: According to Teach Engineering, a pulley system helps to perform work by switching directions of force and simplifying the movement of large objects. Different types of pulley systems include fixed, movable and multiple.
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  • Why can't liquids be compressed?

    Q: Why can't liquids be compressed?

    A: Liquid compression is difficult but not impossible because they feature a mid-level intermolecular force that makes their molecules difficult to compress. Intermolecular force is the strength used to hold molecules tightly together or force them apart. The strength of the intermolecular force depends on the state of the matter, with solids having the strongest intermolecular force and gases having the weakest intermolecular force.
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  • What is the Bernoulli Principle?

    Q: What is the Bernoulli Principle?

    A: The Bernoulli Principle is the concept that claims that as the velocity of a fluid increases, its pressure decreases. Daniel Bernoulli was an 18th century scientist who discovered this principle.
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  • What was Marconi Guglielmo famous for?

    Q: What was Marconi Guglielmo famous for?

    A: Italian born Guglielmo Marconi was most famous for inventing and transmitting the first wireless signals across the Atlantic Ocean. According to the Nobel Prize Organization, in 1900, Marconi received his famous patent number 7777 for tuned or syntonic telegraphy.
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  • What is the difference between balanced and unbalanced forces?

    Q: What is the difference between balanced and unbalanced forces?

    A: Balanced forces are forces that produce no change in motion, while unbalanced forces produce some type of acceleration. With balanced forces, any forces in a given direction are exactly matched by forces in the opposite direction. With unbalanced forces, the forces in one direction are greater than those in the opposite direction, resulting in a net force that produces acceleration.
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  • How does an oil jack pump work?

    Q: How does an oil jack pump work?

    A: An oil jack pump works through a series of gears and a motor that lower a plunger into a certain depth and allow it to fill up with pumped fluid. The plunger is then closed off and raised with the same mechanics that lowered it so that the fluids that are inside the well cannot leave, according to the Massachusetts Institute of Technology.
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  • What is a mechanical governor?

    Q: What is a mechanical governor?

    A: The mechanical governor in an engine uses flyweights and gears in the crankcase to sense the speed to detect changes in the load and increases or decreases the throttle accordingly. According to Briggs and Stratton, a governor is like a car's cruise control system, as it keeps the engine running at the same speed.
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  • What is the Archimedes Principle?

    Q: What is the Archimedes Principle?

    A: The Archimedes Principle (called the law of buoyancy), states any vessel partially or totally submerged in a fluid has an upward force acting upon it that is equal in magnitude to the weight of the fluid displaced by the vessel. The volume of the displaced fluid also equals the volume of the submerged portion of the vessel.
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  • What is the difference between absolute and relative location?

    Q: What is the difference between absolute and relative location?

    A: Absolute location is a place's exact spot on a map, while relative location is an estimate of where a place is in relation to other landmarks. Absolute location is defined by latitude and longitude measurements. Relative location is used in conversational language and for giving rough directions.
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  • How do you calculate net force?

    Q: How do you calculate net force?

    A: To calculate the net force, or unbalanced force, of a Newtonian object, find the sum of all forces presently acting upon it. These include gravity, friction and other forces depending on the scenario. You need only a few figures and computations to calculate an object's net force, which is required for acceleration and is expressed in Newtons.
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  • How did Newton discover gravity?

    Q: How did Newton discover gravity?

    A: Sir Isaac Newton discovered gravity around 1665 while he was drinking tea and observed an apple falling from a tree. Newton deduced that the force that caused the apple to fall to the ground also is the same force that causes the moon to orbit the earth.
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  • What are radio waves used for?

    Q: What are radio waves used for?

    A: Radio waves are used to receive and transmit signals between two objects. These waves help to transfer signals from broadcasting stations to televisions and radios, and they are also used to transmit signals for cellular phones.
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  • How does mass affect speed?

    Q: How does mass affect speed?

    A: Mass does not affect speed directly, but it does affect how fast an object can change its speed by accelerating or decelerating. Objects with larger masses require more time for acceleration or deceleration compared to lighter objects.
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  • What is the definition of input force?

    Q: What is the definition of input force?

    A: Input force is the initial force used to get a machine to begin working. Machines are designed to increase the input force for a larger output force.
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  • How is speed calculated?

    Q: How is speed calculated?

    A: Speed is also known as velocity, and it is calculated by dividing the distance traveled by the amount of time it took to cover that distance. This is expressed as a standard equation: V = D / T.
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  • What are examples of contact force?

    Q: What are examples of contact force?

    A: Physics teaches that a contact force is a force acting between two objects, or an object and a surface that are in contact with one another. Gravity and magnetic attraction are examples of non-contact forces, as they work over a distance. Non-contact forces still apply, even when there is a vacuum between the two objects.
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  • How much pressure can an egg withstand?

    Q: How much pressure can an egg withstand?

    A: An experiment conducted at the Science Studio at Imagination Station demonstrated that a single egg was able to withstand at least 3.75 pounds of force. Eggs are most resistant to breaking when pressure is applied to their ends.
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