ADVANCED
What is Newton’s 1st Law of Motion
an object in motion stays in motion or an object remains at rest unless it is acted upon by a force
. Plants are called ________________________________________________ because they make their own food.
Producers
A student claims that all objects exert a gravitational force on one another. However, it is difficult to observe the effect of the force of gravity unless the mass of one of the objects is very large.
A. The Moon stays in orbit around Earth.
B. Earth spins on its axis at a constant speed.
C. The masses of the Moon and Earth are constant. D. The solar system has moons of different masses.
A. The Moon stays in orbit around Earth.
Gravitational, __________________________, and __________________________ are three examples of fields
Ticks, leeches, and mistletoe are examples of _____________________________ because they harm the host they benefit from
parasitic
An example of Newton’s 2nd Law of Motion
F=MXA
Heavier objects need more force than lighter objects to make them move.
The _______________________________________ is often referred to as the powerhouse of the cell since it is where sugar is used to generate energy
mitochondria
. ________________________________________ are organisms that break down dead matter in an ecosystem.
decomposer
Positive electric charges are always attracted to ____________________________________________ charges.
NEGATIVE
This ant burrows into the acacia tree to eat sugars. The ants also protect the tree from predators.
mutualism
What is Newton’s 3rd Law of Motion?
For every action there is an equal and opposite reaction.
Name two organelles found in plant cells that are not found in animal cells:
Cell wall
Chloroplasts
What moon phases always starts under the Sun?
New Moon
List two metals that are attracted by magnets
IRON
COBOLT
NICKLE
Birds build their nests inside the safety of the tree. The tree isn’t affected.
commensalism
What is the force that pulls objects down towards the center of the Earth
Gravity
The function of the ___________________________ is to help the cell get rid of waste.
lysosomes
What is the problem with human population inscreasing?
There is an increased demand on our natural resources including trees for making products such as paper and furniture, water for drinking, and minerals to make products such as phones and fertilizers.
The north pole of one magnet is always attracted to the ________________________ pole of another magnet.
SOUTH
Solar eclipse order
Lunar eclipse order
Sun, Moon, and Earth
Sun, Earth, Moon
True or False? If friction didn’t exist, an object in motion would stay in motion forever
TRUE
How is sound wave different from light waves?
Sound waves needs to travel through matter, but light does not need to travel through matter.
How could you increase the potential energy of an object?
You could move the object to greater height or distance or you could increase an object’s mass.
Describe one way you can increase the strength of an electromagnet.
increasing current
increasing the number of turns of the coil
adding an iron core
What causes the ocean tides to change from high tide to low tide?
Ocean tides change from high to low due to the gravitational pull of the Moon