Energy
What is the relationship between kinetic energy and speed/velocity?
When speed increases, so does kinetic energy.
Who are the current judges of America Idol. There are three, you only need to list 2/3.
Luke Bryan, Katie Perry and Lionel Richie.
What is the difference between mass and weight? Do they change when a person goes to the moon?
Mass - the amount of matter; does not change when on the moon
Weight - the force of gravity on that weight; does change going from Earth to Moon
If an action force is 500J, how many J is the reaction force? The masses of the objects are both 50kg.
500J
What children's song is the most watched Youtube video of all time?
baby shark!
What is gravitational potential energy and how do you increase it?
Potential for objects to fall or move together because of gravity. Increase the height.
Ms. O will show an image on the board. What is the net force and direction the object will travel?
Will vary depending on image shown.
Who sings the song called "California Gurls?"
Katie Perry
What is Newtons First Law? WRITTEN OUT.
An object will remain in motion or will remain at rest unless an unbalanced force acts on it.
If you increase mass, what happens to the amount of force required to keep the velocity constant?
It increases.
How are potential and kinetic energy related to one another?
They can be converted between each other.
Which singer holds the record for most Grammy Nominations?
Beyonce (88)
What is gravity?
The force that pulls two objects together.
What is Newtons Second Law? WRITTEN OUT.
Force is equal to Mass x Acceleration?
What is acceleration?
An object changing speed.
When moving objects slow down, what kind of energy is being converted to and why?
Thermal energy because the friction is generating heat.
Ms. O will show an image on the board. What is the net force and direction the object will travel?
Will vary depending on image shown.
What are two ways to INCREASE the force of gravity?
Increase the masses of both/either object.
Move the objects closer together.
What is Newton's Third Law?
For every action, there is an equal and opposite reaction.
What is speed with direction? Give one example.
Velocity.
Examples: 60 mph WEST. 20 m/s UP. 5 inches/second LEFT.
What is the Law of Conservation of Energy?
Energy cannot be created or destroyed.
A push or a pull.
Why is an astronaut considered to be weightless?
The distance to any celestial body (Earth or other planet) is so far, the force of gravity is very small.
What is inertia? How do you increase inertia?
The tendency for an object to want to keep doing what it is already doing;
more mass = more inertia.
Momentum = mass x velocity
If two objects collide, the momentum is transferred (2m/s --> 2m/s)