Kinetic Energy
The equation for kinetic energy.
What is KE=\frac{1}{2} m v^2 ?
The equation for gravitational potential energy.
What is PE=mg\Delta h
The equation for work.
What is W=Fd\cos\theta?
The Law of Conservation of Energy states this.
What is "Energy cannot be created or destroyed, only transformed from one form to another"?
The work-energy theorem states this.
What is "Work done on an object equals its change in mechanical energy"?
The equation for power.
What is P=W/t
If a 2 kg object moves at 3 m/s, its kinetic energy is this.
What is 9J
The gravitational potential energy of a 10 kg mass held 2 meters above the ground.
What is 196 J?
A person pushes a box with 50 N over a distance of 4 m in the direction of the force. The work done is this.
What is 200 J?
If a 2 kg object is dropped from a height of 5 m, its total mechanical energy just before impact is this. (Ignore air resistance.)
What is 98 J?
If 500 J of work is done on an object, its kinetic energy changes by this amount.
What is 500 J?
A person does 300 J of work in 10 seconds. Their power output is this.
What is 30 W?
If the velocity of an object is doubled, its kinetic energy does this.
What is quadruples?
If the height of an object is doubled, its gravitational potential energy does this.
What is doubles?
If a force is applied perpendicular to the direction of motion, the work done is this.
What is zero?
At the highest point of a pendulum swing, this type of energy is at its maximum.
What is gravitational potential energy?
A 10 kg object accelerates from 5 m/s to 10 m/s. The net work done on the object is this.
(Double Jeopardy)
What is 375 J?
A 600 W motor does this much work in 5 seconds.
What is 3,000 J?
A car moving at 20 m/s has 10,000 J of kinetic energy. The mass of the car is this.
What is 50 kg?
A 5 kg object is lifted to 8 m. If it is released, its velocity just before impact is this.
(Double Jeopardy)
What is 12.5 m/s?
The work done when a 10 kg object is lifted 3 meters against gravity.
What is 294 J?
A 3 kg object slides down a frictionless ramp starting at 4 m high. Its velocity at the bottom is approximately this.
What is 8.8 m/s?
The work required to stop a 1,000 kg car moving at 20 m/s.
What is 200,000 J?
A 100 kg person climbs a 5 m ladder in 10 seconds. The power required is approximately this.
What is 490 W?
A 5 kg ball is dropped from a height of 10 m. Just before impact, its kinetic energy is approximately this. (Ignore air resistance.)
What is 490 J?
The potential energy of an object at the highest point of a roller coaster compared to its kinetic energy at the lowest point.
What is equal, assuming no energy loss? (Total mechanical energy is conserved.)
A person exerts a 100 N force at a 60° angle to move a box 5 m. The work done is this.
What is 250 J?
A roller coaster starts at 30 m high and reaches a low point of 5 m. If no energy is lost, its speed at 5 m is this.
What is 23.7 m/s?
A force of 200 N is applied to stop a moving object over 4 meters. If the object's initial kinetic energy was 800 J, its final velocity is this.
What is zero?
A 2,000 W engine exerts a 500 N force on a car moving at a constant velocity. The velocity of the car is this.
What is 4 m/s?