A
________ _________ is the energy of motion?
What is kinetic energy?
In the kinetic energy and gravitational potential energy formulas what unit is mass measured in?
What is Kilograms (kg)?
What is the value of the acceleration due to gravity (g) that is used in the Ep calculations?
What is 9.81m/s2?
The main difference between a scalar and a vector is that a vector also shows ___________.
What is direction?
Most things are inefficient due to this.
The energy stored in a compressed spring is known as what? (Full name)
What is elastic potential energy
Impulse Momentum
A car with a mass of 1500 kg is moving at a speed of 14 m/s. What is the kinetic energy of the car?
What is 1.5 x 105 J?
A student on a bicycle started from a full stop and reached a velocity of 8.75 m/s in 3.8 s. What was his average acceleration?
What is 2.3m/s2?
A boulder rests on a ledge 36 m above a lake. If it has 10,000 J of gravitational potential energy, what is the mass of the boulder?
What is 28.32 kg?
An object is traveling at an average speed of 8.0 m/s. How long will it take this object to travel 30.5 m?
What is 3.8s?
A freight elevator with a mass of 120 kg is moving with a speed of 2.50 m/s. What is it’s kinetic energy?
What is 375J?
A model rocket started from the ground and reached an upward velocity of 66 m/s in 5.0 s. What was the rocket’s average acceleration?
What is 13m/s2?
The Gravitational energy of an object before it is dropped is equal to its ______ at the bottom of its fall.
What is Kinetic Energy
Alex walks 1.5 km North from the school. Kendra walks 0.45 km east. What is the displacement from each other?
1.57 km
In this type of collision, the two objects stick together after impact.
Perfectly Inelastic
These 3 things cannot be created or destroyed
Energy, Mass, Momentum
A majority of US energy comes from this.
What is Natural Gas.
What is Chemical?