Scientific Method / Lab Equipment
The first step of the scientific method is....
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From water, oil, honey, and alcohol which one has the lowest density?
alcohol
Speed is ________
distance over time
(how fast something is moving)
Balanced forces are equal to
0N
Newton's first law is called the Law of _______.
Inertia
__________ are used to measure how heavy something is or its mass.
Weighing scales
If you put an egg into salty water, it will _____.
Float
The dependent variable in an experiment for ‘Does temperature change how much we eat?’ is ____
A resultant (unbalanced) force can be _______
accelerating
deaccelerating
changing direction
Newtons second law states that force is equal to ______ x ________.
mass
acceleration
The third step of the scientific method is ______________.
conduct an experiment
What is the density of oil?
0.9 g/cm3
The independent variable in an experiment for
“Are boys or girls better at math?” is ________.
gender
Tension is a _______________ force.
pulling
Newton's third law states that every action has an ________ and ______ _________.
equal
opposite
reaction
_______ are used to measure liquids.
Graduated Cylinders
Density tells us how much ______ is in something.
matter
Acceleration is ________
Deacceleration is ________
a change is speed
(getting faster)
(getting slower)
Constant speed means ________
no acceleration or change in direction
When a space shuttle launches the downward force from the exhausts causes an _____________ force on it. (3rd Law)
upward
What is the likely hypothesis for a lab experiment using oil and water?
The oil and water won't mix.
Density is equal to
mass over volume
What was the IV (independent) DV (dependent) and CV (control) for the tinfoil boat challenge?
IV = boat shape/design
DV= amount of clay
CV = size of the foil
Friction _______ down or ______ movement and moves in an _______ direction.
slows
stops
opposite
What is the force of a 55kg bike moving at 5 m/s/s? (2nd Law)
275N