Chemistry
What subatomic particles are found in the nucleus?
What is protons and neutrons
A toy truck is at rest. What type of force describes the forces acting on the toy?
What is Balanced forces= no movement
What season would it be in Brazil if the Northern hemisphere is tilted away from the sun?
Which type of stars are the most abundant?
What is Main Sequence Stars
What type of boundary results from the SPREADING of the oceanic ridge?
Divergent Boundary
Sodium and Lithium have similar chemical properties. Why is this?
What is they are in the same group/ same valence electrons
An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force
What is Newtons first law of motion (INERTIA)
What would best explain the change from daytime to nighttime on Earth?
What is earth's rotation
Describe White Dwarfs
What is cold, dim, small
What is the location and charge of the electron?
What is negative and outside the nucleus (shell)
Four boxes are sliding at constant speed, then an unbalanced force of 8N is applied to all of them. Which box will accelerate the fastest?
a) Box with mass of 8kg
b) Box with mass of 4 kg
c) Box with mass of 6.5 kg
d) Box with mass of 2kg
What is d) box with mass of 2kg
Why does autumn start in different months of the year in North America and South America?
What is because of Earth's tilted axis
Which wave has the most frequency?
What is Gamma rays
How many neutrons are in the nucleus of a potassium atom with an atomic number of 39?
What is 20
A sledgehammer has a mass of 3.5 kg. What is the Net force needed to accelerate the hammer at 4.0 m/s^2?
What is 14 Newtons
A student notices that the moon is full one evening. What are the next three moon phases?
What is Waning gibbous, Third quarter, waning crescent
How does a star begin its life?
What is nebula
What are some characteristics of metals?
What is good conductor, shiny, malleable/ductile
The net force of a vechicle accelerating at a rate of 1.5 m/s^2 is 1,800 newtons. What is its mass?
What is 1200 kg
HINT: SPRING TIDES, STRAIGHT LINE
What is New & Full Moon
Why doesn't the earth drift off into space?
What is sun's gravitational pull