Miscellaneous
The term for something that only has a magnitude
What is a scalar?
What is the acceleration due to Gravity on Earth?
9.8m/s2
This law states that forces come in pairs. Action/Reaction
What is Newton's 3rd Law?
A person does 200J of work in 10 seconds. How much power is that?
What is 20W?
The unit of force in physics
What is the Newton?
The term for something in physics that has magnitude and direction
What is a vector?
How can you increase gravitational potential energy?
Move it higher.
This is one form of the equation that represents Newton's Second Law of Motion.
What is F=ma?
Two people mow a 10m stretch of lawn. They each exert 4N of force. How much work did they do?
What is 40 J?
The unit that is used for work and energy in physics.
What is the Joule?
This is the type of force that opposes gravity when the object is at rest on a surface.
What is the normal force?
Stored energy that is due to an objects mass and height is...
What is potential energy?
This states that an object at rest or in motion remains at rest or in motion unless an outside force acts upon it.
What is Newton's 1st Law?
Two people mow a 10m stretch of lawn. They each exert 4N of force. If the first person did it in 25 min but the second person took 35 min, did they do the same work?
Double Jeopardy: What is different here?
Yes!
The units for mass in physics?
What is kg?
This term means a push or a pull.
What is force?
What is kinetic energy?
When forces are acting on an object in opposite directions they are __________ to find net force.
Double Jeopardy: When forces are going the same direction they are _________ to find the net force.
What is subtracted?
How much power is exerted if I move a table with 40 J of work in 40 seconds.
What is 1 Watt?
The unit of power physics.
What is the Watt?
Combined forces that cause a change in an object's motion.
Double Jeopardy: What are combined forces that do not cause a change in motion (Fnet =0N)
What are balanced forces?
Total mechanical energy comes from the sum of what two energies?
Potential and Kinetic
True or False: If an object is pushed with more force, it will move faster, or have a greater acceleration.
What is true?
Formula for Power?
What is P=W/t?
The unit for time in physics?
What are seconds?
This term refers to all the combined forces acting on an object
What is net force?
The law of conservation of energy says
What is energy cannot be created or destroyed only transformed?
This is a term that is used to describe the tendency for an object to stay at rest or stay in motion at constant velocity?
What is inertia?
Formula for Work done
W=Fd
The unit for distance in physics?
What is the meter?