Newton's Laws of Motion
Which law does a rocket ship fit best? explain
Third law
What is distance?
The total amount of area travelled.
Explain kinetic & potential energy
kinetic energy- energy from an object's motion
potential energy- energy stored up in an object
What is the formula for potential energy?
GPE= mass * gravity * height
What is the velocity of a car that travels 42 miles in 6 minutes? (give units in answer)
7 miles/minute
Give an example of he first Law of motion & explain.
answers vary
What is displacement?
The difference between the start and end point.
Is a book sitting on a desk potential or kinetic energy?
Potential
What is the formula for kinetic energy?
KE= 1/2 mass * volume2
Balance the equation:
___SiCl4 + ___H2O →___SiO2 + ___HCl
_1_SiCl4 + _2_H2O →_1_SiO2 + _4_HCl
Give an example of the third Law of motion & explain.
What is the distance and displacement of the rectangle on the board? (From A to B)
Distance- 25 km
Displacement- 25 km to the right
Is an arrow shooting through the sky potential or kinetic?
Kinetic energy
What is the kinetic energy of a 2,000-kilogram boat moving at 5 m/sec?
25,000 J
What is the net force?
F1= 30 units to the left
F2= 13 units to the right
FNet= 17 units to the left
Give an example of the second Law of motion & explain.
answers vary.
What is distance and displacement from A>B>C>D>A?
distance:76 km
displacement: 0
Is an apple falling from a tree kinetic or potential?
Kinetic energy
What is the potential energy of a 3 kilogram-ball that is on the ground? (gravity= 9.8m/s2)
29.4 J
What is the study of kinematics?
The study of how things move
What are the three laws of motion?
First Law: an object in motion will stay in motion until another force acts on it (law of inertia)
Second Law: F=mass * acceleration
Third Law: Every action has an equal and opposite reaction
What is the distance and displacement from A>B>C?
distance- 38km
displacement- 28.18km to the south east/ down and right
Give one example of kinetic energy and one example of potential energy (can't be one mentioned yet in class today)
examples vary
What is the type and total energy of a carriage that is sitting at the top of hill? The carriage weighs 53kg and the hill is 100 feet high.
51,993 J Potential energy
What is a frame of reference?
Are you moving?
Are you moving around the room?
a set area or idea that we are using to determine position/ movement