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
Joules
Watts
Newtons
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?
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?