Forces
What is the definition of a force?
A push or pull.
Why is force considered a vector?
It has both magnitude and direction
Where is the magnetic field the strongest on a magnet?
poles
What rocks are formed from extreme heat and pressure?
Metamorphic
What are the two types of cells? Think simple versus complex
prokaryotic and eukaryotic
What is the difference between a contact and non-contact force?
A contact force requires physical touch while a non-contact force does not.
Newton's 3rd law states that for every action there is an _______________________________.
equal and opposite reaction
What 3 metals are magnetic?
iron, nickel, cobalt
What rocks are formed from the cooling of lava or magma?
Igneous rocks
Which organelle contains most of the cell’s genetic material and is responsible for controlling the cell’s growth, movement, reproduction and eating?
Nucleus
What is the net force (include direction) if you have 400 N pushing to the left and 200 N pushing to the right on an object?
200 N to the left
If a 2 kg paper airplane is pushed by the wind with a force of 10N, how fast will the paper airplane accelerate? (include units)
5 m/s2
What happens when two items with positive charges come close to each other?
They repel
What rocks are formed from sediments being compacted and cemented together?
Sedimentary rocks
What 3 organelles are found in plant cells but not animal cells?
Central vacuole, chloroplasts, cell wall
What phenomenon is described by all objects with mass attracting to each other.
Gravity
Which law states that an object at rest will stay at rest and object in motion will stay in motion unless acted upon by an unbalanced force?
Newton's 1st Law
The Law of Inertia
How can you make the bulb brighter in a circuit?
Increase voltage or increase the number of batteries
List the 4 main spheres and what they contain.
Geosphere/Lithosphere - rocks/landforms
Biosphere - all living things
Hydrosphere - water
Atmosphere - air/gasses
In order for cells to divide they must go through a specific process called ______________.
Mitosis
_____________ is the measurement of the force of gravity acting on an object with mass.
Weight
When force increases, acceleration ___________________ because they have a(n) __________________ relationship.
increases, proportional
What is an advantage of an electromagnet over a permanent magnet?
You can turn it off
What are the 3 types of plate boundaries?
Convergent, divergent, transform
Which organelle forms passageways in which proteins are carried?
Endoplasmic. reticulum (ER)