Newton's laws
What law states that an object in motion stays in motion
Newton's first law
Are there any systems that are ever 100 percent efficient?
No
What is friction?
Force that resists motion between two surfaces
What is the type of energy that an object has at the top of a hill?
Potential energy
What are balanced forces
Equal forces acting on an object
What law states that force equals mass times acceleration
Newton's second law
When energy is transferred what are two ways that you always "lose energy"
Heat and sound
What is a byproduct of friction
Heat
What is the type of energy that you have when you are moving
Kinetic energy
What are unbalanced forces
Unequal forces that are applied to an object
What law states that for every action there is an equal and opposite reaction
Newton's third law
If only 10 percent of energy from a light bulb becomes light, what happens to the other 90 percent?
It becomes heat
Do you gain more or less heat when there is less friction
What type of energy is stored in compressed objects like rubber bands
If an object is sitting still, are the forces balanced or unbalanced?
Balanced forces
What law is at work when a basketball bounces back up off the ground
Newton's third law
Why does a roller coaster need an additional energy source to keep the carts moving?
What does efficiency measure?
How much energy is lost to heat or sound
What type of energy is heat?
Thermal
If an object is accelerating, what type of forces are acting on it?
Unbalanced forces
What law can be seen when a book is resting on a table
Newton's first law
What is the energy transformation that occurs with a blender
Electrical to mechanical to thermal
DAILY DOUBLE
What is the energy transformation that occurs when you turn on a blender
Electrical to mechanical to thermal
What does the law of conservation of energy tell us?
That energy can neither be created or destroyed
If an object is slowing down, what kind of forces are acting on it?
Unbalanced forces