What is Newton's 1st Law of Motion?
Law of Inertia
An object at rest will stay at rest and an object in motion will stay in motion unless acted on by an unbalanced force.
The object is not moving.
_______ is the ability to cause change.
Energy
What is the law of conservation of energy?
Energy cannot be created or destroyed.
Waves transfer ___________.
energy
What is Newton's 2nd Law of Motion?
F = M x A
The more mass an object has, the more force needed to accelerate.
Net Force Diagram Question
(draw on board)
Depends on drawing
Energy due to motion is __________
kinetic energy
Batteries have what type of energy?
Chemical
Draw one wave with a long wavelength and one with a short wavelength.
Answers will vary.
What is Newton's 3rd Law of Motion?
For every action, there is an equal but opposite reaction.
Net Force Diagram
Draw on board
depends on drawing
mass and speed
Give an example of an object that uses both sound and electrical energy.
speaker
Draw one wave with high frequency and one with low.
Label
answers will vary
When we completed the lab with the balloon on the string, what law were we demonstrating?
Newton's 3rd Law
How can an unbalanced force affect an object that is already moving?
Need three answers.
Can make it go faster, stop the object, or change the direction.
What two factors affect an object's potential energy?
mass and height
Give an example of an object going through three energy transformations.
answers will vary
crest, trough, amplitude, wavelength
answers vary
Give an example of each of Newton's laws in real life.
Three examples total!
Answers will vary.
F = M x A
M = F/A
A = F/M
Use one of the equations to solve the problem.
Draw on board.
depends on drawing
Give two examples of objects that have potential energy and give two examples of objects that have kinetic energy.
answers will vary
List the 7 forms of energy.
Mechanical
Electrical
Chemical
Sound
Light/Radiant
Thermal/Heat
Nuclear
What is the relationship between frequency and wavelength?
As frequency increases, wavelength decreases.