Open note, not open neighbor or google. Put phones away as usual.
Equations:
W=Fd
P=W/t or P=Fd/ t
KE= 1/2 mv^2
Open note, not open neighbor or google. Put phones away as usual.
Equations:
W=Fd
P=W/t or P=Fd/ t
KE= 1/2 mv^2
Match the units
Newtons
Joules
Watts
Work
Kinetic Energy
Power
Force
Potential Energy
Mechanical Energy
A horizontal force of 300 N is applied to move a 30kg giant teddy bear 10m across a level floor in a store to prepare for crazy holiday shoppers. What net work is done on the teddy bear?
Work is done when
A motor is more powerful if
What is the work done by a 0.4N cricket on a 21,000N car as the cricket sits on the car while the car backs up on a 11m driveway at 3.0 m/s.
In the Amazing Race, Team Llama took 2 minutes to take a 15 m path down a hill. Mickey and Minnie took 1 minute to take a 25 m path down a mountain. Jack and Jill took a path of 30 m after reaching the bottom in 25 seconds. Which team was the most powerful?
What is the power output by the child as she pulls a 250N toy up 1.2m onto her bunk bed in 0.3s?
A student walks to school at a constant velocity carrying a 3N backpack 30m across level ground. What is the net work done on the backpack?
If you triple the velocity of an object, the Kinetic Energy will be the amount
What is the work done on a 2 kg ball that is now rolling at 10 m/s after being kicked?
How fast is rubber band released if it is 0.1 kg and had 200 J of energy as it was stretched?
What is the mass of an object with 482 J of potential energy at a height of 3 m?
How much KE does a 50 kg runner have when running at 10 m/s?
A playful 4 kg penguin slides down an ice ramp. At a height of 2 m, the penguin’s velocity is 8 m/s. What is the Kinetic Energy at 2 m? Do not worry about including units.
A playful 4 kg penguin slides down an ice ramp. At a height of 2 m, the penguin’s velocity is 8 m/s. What is the Potential Energy at 2m? Do not worry about including units.
What is the weight of a tightrope walker that is 7.8 m above the ground with 2,598.96 J of energy?