In order to apply the ideas of forces and motion found in engineering and simple machines, students will design and create a Rube Goldberg machine. Students will need to use each of the following types of force or motion including: Push, Pull, Pulley, Lever, Ramp, Gravity. How does a Rube Goldberg machine relate to physics?…

When the switch is closed, the R2 resistance essentially becomes a non-factor and you have less resistance, which would mean you would have higher current. How do you solve a resistor problem? How do you solve circuit problems in physics? What happens if the switch is closed in a parallel circuit? In a parallel circuit,…

How do you solve a pulley physics problem? How do you find the pulley in physics? If the mass accelerates down, F is positive. Calculate the tension in the rope using the following equation: T = M x A. Four example, if you are trying to find T in a basic pulley system with an…

Suspend a third pulley from the first, loop the rope through that so three ropes are suspending the load, and the force you have to exert to lift the load is only one-third of its weight. How do you solve a pulley question in physics? How do you calculate pulley weight? Calculate the force caused…

How do you solve problems with friction at work? How do you solve work and energy problems in physics? How do you calculate the power of friction? Choose the normal force acting between the object and the ground. Let’s assume a normal force of 250 N . Determine the friction coefficient. Multiply these values by…

Step 1: Determine the volume of the submerged part of the object. This is also the volume of the fluid displaced. Step 2: Calculate the mass of the displaced fluid, mf , using the density equation solved for mass: mf=ρfV m f = ρ f V . How do you calculate submerged force? We estimate…

It’s usually because of the excess electrical charge that accumulates in insulating materials through which electricity does not circulate very well. When this insulating material enters into contact with any other object that has a positive charge, it releases electrons, and this is what causes that dreadful shock. How can we solve the problem of…

In downhill skiing, as your skis push against the ice or snow, kinetic friction occurs which transfers some kinetic energy into thermal energy. Kinetic energy comes from the act of moving and pushing yourself down the slope; the thermal energy is the heat that exudes from where your skis and snow rub together. How does…

An inelastic collision is one in which objects stick together after impact, and kinetic energy is not conserved. This lack of conservation means that the forces between colliding objects may convert kinetic energy to other forms of energy, such as potential energy or thermal energy. How do you solve the train car problem in physics?…

Answer and Explanation: The forces acting on a racing car just starting to move are the applied force, friction, the gravitational force and the normal force. How is physics used in cars? For example, we can study whether a car would turn over if it moves on a circular track with certain radius. Physics is…

What force causes a car to come to a stop? It is the friction force that keeps the tires from sliding on the road. By the same token, it is friction that makes the car come to a stop when the brakes are applied. So, it is the force of friction that makes a car…

Nut Cracker. A nutcracker is a prominent example of a second-class lever simple machine. Seesaw. Seesaws demonstrate the working of a first-class lever simple machine in the simplest possible way. Scissors. Plier. Stapler. Wheelbarrow. Human body. Broom. What is an example of a lever in physics? Example: Our hand pushing an object or seesaws, crowbars.…

This means that any object, regardless of size or mass, will slide down a frictionless ramp with the same acceleration (a fraction of g that depends on the angle of the ramp). How do you do ramp problems in physics? How do you find the acceleration of a frictionless ramp? For a frictionless incline of…

The International Mathematical Olympiad (IMO) How do you qualify for Physics Olympiad? School students (usually of standards 11 and 12 albeit special cases prevail) first need to qualify the National Standard Examination in Physics (NSEP) held on the last (or second last) Sunday of November of the preceding year. What topics are in Physics Olympiad?…

The Carnot cycle achieves maximum efficiency because all the heat is added to the working fluid at the maximum temperature. What is the formula for heat engine? The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided…

The proper power formula is Power = Force in lifting a load * speed of lifting the load. How do you calculate power in an elevator? The work done by the elevator over the 100 meters is easily calculable: W = mgh = (1000)(9.8)(100) = 9.8×105 Joules. The total time of the trip can be…

1· Try to move an object. 2· Pushing a car and a truck. 3· Racing Cars. 4· Rocket launch. 5· Kick the ball. 6· Car crash. 7· Two people walking. 8· Object thrown from a height. How do you solve Newton’s second law problem? What is an example of 2 law of motion? Newton’s second…

The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum. How do you solve impulse problems in physics? What is impulse during…

B Write the equilibrium constant expression for the reaction. Substitute the known K value and the final concentrations to solve for x. C Calculate the final concentration of each substance in the reaction mixture. Check your answers by substituting these values into the equilibrium constant expression to obtain K. How do you solve torque problems…

An object in free fall experiences an acceleration of -9.8 m/s/s. (The – sign indicates a downward acceleration.) Whether explicitly stated or not, the value of the acceleration in the kinematic equations is -9.8 m/s/s for any freely falling object. How do you solve free fall physics problems? What forces are acting on a person…