Thermal Energy
Which state of matter has the most kinetic energy?
Gas
The capacity to do work. . .
Energy
If a Force of 200 J is pushed on a object and the object moves 0 meters, how much work was done?
none; Work=Force x distance
200 J of work is done in 10 seconds. How much power is used?
20 Watts
A blade is what kind of simple machine?
wedge
Which would have a higher specific heat, gold or water?
water
A moving object has what kind of energy?
kinetic
An object with a mass of 20Kg is moved with the acceleration of 2m/s for 10 meters. How much work is done?
400J
If a runner with a force of 20 Newtons has a mass of 68 Kg and moves a distance of 400 meters in 30 seconds, what is the power?
266.67 Watts
the point where a lever pivots is called what?
fulcrum
Thermal energy transfer that works by movement of waves or particles.
radiation
A boulder on a mountain has what type of energy?
gravitational potential energy
If 200 J of work is done to an object that has a moved 100 meters. What is its mass?
2 Kg
A train moves with 1400 J for 60 seconds. What is its power?
23.33 Watts
Would a wheel barrow be a first, second or third class lever?
second.
Energy transfer where currents of fluid or air moves from warmer to cooler areas.
Convection
How much potential energy does a drone hoovering 20 meters off the ground if its mass is 3 Kg?
588 J
A force of 200 N is pushed on a 5 Kg object. How much work is done?
1,000 J
A heavy lifter moves an object with a force of 50 N 5 meters high in 3 seconds. What is his power?
83.33 Watts
How does a pulley make work easier?
changes direction, and decreases friction
Energy transfer that occurs due to direct contact of one hot object to another.
conduction
If a 3 Kg drone is moving at 20 m/s, what is its kinetic energy?
600J
A force of 500 Newtons is applied to an object. The frictional force is 300 Newtons. What is the work done if the object is 40 Kg?
8,000 J
One horsepower is approximately 746 Watts. If a 2000 horsepower Lotus moves for 60 seconds and has a mass of 1,680 Kg, what is the acceleration?
53285.71
what two simple machines make up scissors?
lever and wedge