Forces, Machines, Motion, And Energy Part III Question Preview (ID: 48593)
Exam #1.
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A scientist's conclusion of why something happens the way it does
a) Law
b) Observation
c) Experiment
d) Theory
The tendency of objects to resist a change in motion
a) Pressure
b) Acceleration
c) Inertia
d) Gravity
A machine that converts heat energy into mechanical energy (can be a natural machine like a hurricane)
a) Lever
b) Pulley
c) Axle
d) Heat Engine
A returning force
a) Friction
b) Gravity
c) Elastic
d) Pressure
Consists of our sun and everything that travels (orbit) around it
a) Satellite
b) Solar system
c) Galaxy
d) Milky Way
A method of conducting science that usually includes an observation, hypothesis, experiment, and theory
a) Scientific method
b) Experimentation
c) Spectrum
d) Conservation
The pressure in a fluid decreases as the speed of the fluid increases
a) Law of gravity
b) Fluid dynamics
c) Bernouilli's Principle
d) Fusion
A substance that flows with relative ease. Ex: Water and air
a) Fluid
b) Element
c) Lubricant
d) Electricity
A force that pulls all things toward each other
a) Inertia
b) Mass
c) Friction
d) Gravity
A weak (lower) tide and happens when the sun and moon are not aligned with the earth
a) Solar tide
b) Wave
c) Neap tide
d) Spring tide
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