Motion
The SI Unit for velocity
What is meters per second?
The SI unit of force
What is a Newton?
The SI unit for momentum
What is a kilogram meter per second?
The SI unit of Work
What is a Joule?
The SI unit of energy
What is a joule?
The SI unit for acceleration
What is meters per second squared?
Whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object.
Newton's 3rd Law
This type of collision occurs when a ping pong ball that bounces off the ground back up to its starting position
What is elastic?
The SI unit of Power
What is a Watt?
True or false: Nonrenewable energy is replenished over much longer periods of time in comparison to renewable energy.
What is true?
You can find this variable by finding the slope of a distance time graph
What is speed?
The state of motion of an object does not change as long as the net force acting on the object is zero (in equilibrium)
What is Newton's 1st Law?
This type of collision occurs when a football player making a tackle
What is inelastic?
By doing this you can make the work output of a machine closer to the work input of a machine in order to increase efficiency
What is by decreasing friction?
The mechanical energy of an object equals its
What is its kinetic energy plus its potential energy?
The name given to a variable with both magnitude and direction
What is a vector?
The acceleration of an object is equal to the net force acting on it divided by the object’s mass
What is Newton's 2nd Law?
What is the momentum of a 50-kilogram ice skater gliding across the ice at a speed of 5 m/s?
What is 250kgm/s?
The amount of work done holding a 20N weight for 10s
What is 0J?
The kinetic energy of a 20-kilogram canoe is floating downriver at a speed of 2 m/s
What is 40 J?
The total displacement of a person who travels 3km south, 2km north, 5km south, and 8km north
2.0 km north
How to find the weight of an object
What is mass times the acceleration due to gravity?
If a baseball is thrown 40 m/s and its momentum is 5.7 kg m/s, what is the baseball’s mass?
0.14kg
The power used when you exert a force of 700 N to walk 6 m up a flight of stairs in 6 s
What is 700 Watts?
The potential energy of a spring with constant 200 N/m is compressed 0.8 m
What is 64 J?