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.

See Full Answer
Filed Under:
  • What is the function of a mortar and pestle?

    Q: What is the function of a mortar and pestle?

    A: A mortar and pestle is used to grind fresh herbs and spices. These freshly ground herbs and spices can be used in cooking or in home health remedies.
    See Full Answer
    Filed Under:
  • How does convection work?

    Q: How does convection work?

    A: Convection works by transferring heat from a hot substance to a cooler one through the motion of one of the substances. For example, as wind passes over a hot substance, heat from the substance transfers to the air particles, cooling the hot substance and slightly warming the air.
    See Full Answer
    Filed Under:
  • What is the law of the pendulum?

    Q: What is the law of the pendulum?

    A: The law of the pendulum, discovered by Galileo Galilei, states that swinging objects follow the same path and have a period between swings that remains constant. Galileo attracted immediate attention for the discovery, which was later used in clock regulation.
    See Full Answer
    Filed Under:
  • What class lever is a stapler?

    Q: What class lever is a stapler?

    A: A stapler is an example of a second class lever. Levers are designated as second class if the load is situated between the fulcrum, or pivoting point, and the point where effort, or force, is applied.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • How is acceleration measured?

    Q: How is acceleration measured?

    A: Acceleration is measured by using an accelerometer, an electromechanical device that measures acceleration forces. Dimension Engineering explains that these forces can be static, such as those caused by gravity, or dynamic, as in those that cause motion.
    See Full Answer
    Filed Under:
  • What is acceleration?

    Q: What is acceleration?

    A: Acceleration is any change in the speed or the direction of movement. It does not matter, from a scientific point of view, if only the direction changes but not the speed, as with a planet in a circular orbit, or if the object is reducing in speed but keeping the same direction. Acceleration, like velocity, is a vector quantity, so it can only occur in one direction.
    See Full Answer
    Filed Under:
  • What kind of simple machine is a pair of scissors?

    Q: What kind of simple machine is a pair of scissors?

    A: A pair of scissors is two levers put together. With this simple machine, less force is needed because a greater distance is involved. Other types of levers include a see-saw, a hammer, a fork and a baseball bat.
    See Full Answer
    Filed Under:
  • What is the definition of internal force?

    Q: What is the definition of internal force?

    A: By definition, internal force is whatever causes an object with mass to accelerate or move. This force is equal to the product of the mass of the object plus its rate of acceleration.
    See Full Answer
    Filed Under:
  • When is friction unwanted?

    Q: When is friction unwanted?

    A: Friction is unwanted in any situation in which free and continuous motion of mechanical parts is necessary. Some examples include the moving parts inside of an engine, door hinges and water slides.
    See Full Answer
    Filed Under:
  • What is the law of inertia?

    Q: What is the law of inertia?

    A: The law of inertia states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. The law of inertia is sometimes referred to as Newton's first law of motion.
    See Full Answer
    Filed Under:
  • How does a water turbine work?

    Q: How does a water turbine work?

    A: Water turbines convert the motion of moving water into rotating mechanical energy by catching the water with large blades. They are important to the structure and function of hydropower plants. There are different models of water turbines, but all perform the same basic function of converting the energy of the moving water into the revolutions of a shaft.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • How do water rockets work?

    Q: How do water rockets work?

    A: A water rocket works because of air pressure that is builds inside a container filled with water, usually a plastic soda bottle, which is released rapidly through an opening as it tries to escape. The reaction of a water rocket is an excellent example of Newton’s third law of motion, which states that forces exist in pairs.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • What is the definition of hydraulic pressure?

    Q: What is the definition of hydraulic pressure?

    A: The definition of hydraulic pressure is that of a force per unit area that is measured in pounds per square inch (PSI). Dynamic pressure and static pressure are the two pressure components.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under:
  • Why do ships float on water?

    Q: Why do ships float on water?

    A: Ships float because they displace enough water for the buoyancy force to be greater than the force of gravity acting on the ship. The displaced water attempts to return to its original position, now occupied by the ship, which pushes the ship up. This effect is known as buoyancy force. The strength of the force of gravity pulling down on the ship is affected by its weight. Whichever of these forces is stronger determines if the ship floats or sinks.
    See Full Answer
    Filed Under:
  • Is air considered a fluid?

    Q: Is air considered a fluid?

    A: Air is a fluid because the force needed to deform it depends on how fast it is deformed, not on how much it is deformed. This differs from a solid, where the force needed to deform it remains the same whether it is done quickly or slowly.
    See Full Answer
    Filed Under:
  • What is the meaning of "swept volume"?

    Q: What is the meaning of "swept volume"?

    A: "Swept volume" is defined as the volume of fluid through which a piston or plunger moves when it makes a stroke in an engine, according to Oxford Dictionaries. The swept volume times the number of cylinders in an engine is known as the displacement, usually measured in liters. Calculating the swept volume is done by multiplying pi times the radius squared times the height of the chamber.
    See Full Answer
    Filed Under:
  • 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.
    See Full Answer
    Filed Under: