Newton's First Law
Newton's Second Law
Newton's Third Law
Moon Phases
Origins of the Universe
100
A book is lying on a table. What will happen to the book if no external force is applied?
The book will remain at rest.
100
What are the three different formulas for Newton's second law of motion?
F=ma
M=F/a
A=F/m
100
The rate of change of momentum is known as?
force
100
Which way does the moon rotate?
Counterclockwise
100
How was the universe formed?
Big Bang
200
What is Newton's first law of motion also known as?
law of inertia
200
Other name for Newton's second law is
Law of Force and Acceleration
200
What does Newton's third law state?
Fore every action there is and equal and opposite reaction.
200
How long does it take the moon to rotate around Earth?
27.3 days
200
What is CMB?
the cooled remnant of the first light that could ever travel freely throughout the Universe
300
Without an unbalanced force acting on it a moving object will
keep going with constant speed in the same direction.
300
How is force calculated?
300
What happens when a rocket takes off?
the rocket engine burns fuel, expelling hot exhaust gases downwards
300
If it was a new moon on January 29 when would we have a first quarter moon?
Feb. 5
300
What is Red shift and Blue shift?
Red shift- the wavelength of the light is stretched, so the light is seen as 'shifted' towards the red part of the spectrum
Blue shift- a shift toward shorter wavelengths of the spectral lines of a celestial object, caused by the motion of the object toward the observer
400
When hit from behind in a car crash, a passenger wearing a seat belt can suffer a neck injury. Which of Newton's laws does this exemplify?
first law of motion
400
The unit of force is?
Newtons
400
What happens when a gun is shot?
Action: acceleration force of the bullet
Reaction: recoil force on the gun
400
What moon phase is it when the moon is between the sun and earth?
new moon
400
Where is our sun located in the Milky Way?
in a spiral arm that extends outward from the Sagittarius arm
500
What will a moving object do when there are balanced forces acting on it?
continue moving with the same speed in the same direction
500
The sum of all forces acting on a body
Net force
500
What happens when you let a balloon go?
Air will rush out of the balloon forcing the balloon to move through the air in the opposite direction, but equal force.
500
Why do we see moon phases?
as the Moon orbits the Earth, different parts of its surface are illuminated by the Sun, causing us to see varying amounts of the lit side depending on its position relative to the Earth and Sun
500
What are the three different type of galaxies and explain them?
spiral galaxies are a flattened disk and spiral arms
elliptical galaxies are round or oval with a more uniform distribution of stars
irregular galaxies lack a defined shape or structure