Work
1. Mass
2. Acceleration
3. Push and Pull
4.gravity
Force
1. Start
2. Reaction
3. Input
4. Chemical
Activation energy
A 50 kg person climbs a ladder 5 meters high in 10 seconds. What is the average power used
245 W
Force applied over distance.
Work
A 10 N force moves an object 5 meters in the direction of the force. What is the work done?
50 J
1. Length
2. Meters
3. Ruler
4. Long/far
Distance
1. Absorb
2. Energy
3. Reaction
4. Enthalpy
Endothermic
A 12 V battery supplies a current of 2 A to a circuit. What is the power supplied by the battery?
24 w
Capacity to do work.
Energy
A 10 N force moves an object 5 meters in the direction of the force. What is the work done?
100 J
1. Teeth
2. Bicycle
3. Chain
4. Wheel
Gears
1. Release
2. Energy
3. Reaction
4. Enthalpy
Exothermic
Α 5 Ω resistor has a current of 3 A passing through it. What is the power dissipated in the resistor?
45 W
Push or pull interaction.
Force
A 5 kg object is raised to a height of 8 m above the ground. What is its potential energy?
392 J
1. Parts
2. Mechanical
3. Moving
4. Function
what is?
Machine
1. Energy
2. Speed
3. Movement
4. Object
Kinetic energy
A car engine produces a constant force of 500 N and moves the car at a velocity of 15 m 'hat is the power of the engine?
7500 W
Useful output versus input.
Efficiency
A 3 kg object is moving at 4 m/s. A force stops it completely over a distance of 2 m. What is the work done on the object?
-24 J
1. Energy
2. Unit
3. Measurement
4. Calories
what is?
Joules
1. Destroyed
2. Created
3. Law
4. Constant
Conservation of energy
A 4 kg object speeds up from 10 m/s to 20 m/s in 5 seconds. What is the average power?
120 W
Work done per time.
Power rate
A ball of mass 1 kg is dropped from a height of 10 m. What is its speed just before hitting the ground? (Ignore air resistance).
14.14 m/S