Forces, Machines, Motion, And Energy Question Preview (ID: 48591)
Exam #1.
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A force that continually pulls a spinning object toward its center
a) Gravity
b) Centripetal force
c) Acceleration
d) Inertia
The rate of change of velocity in relation to time
a) Displacement
b) Friction
c) Acceleration
d) Pressure
The upward pushing force of a fluid against an object that is pushing down against the fluid
a) Lubricant
b) Hydrometer
c) Speed
d) Buoyancy
Something that changes the motion and/or shape of an object - can create movement and can also change or stop movement
a) Inertia
b) Heat engine
c) Force
d) Vectors
Conducted many experiments dealing with the earth's gravitational pull
a) Bernoulli
b) Galileo
c) Newton
d) Einstein
A substance that reduces friction between two moving surfaces.
a) Pressure
b) Fluid
c) Friction
d) Lubricant
The straight line change in position of an object
a) Displacement
b) Inertia
c) Velocity
d) Speed
A scientist's best guess of why something is happening
a) Observation
b) Law
c) Theory
d) Hypothesis
An object that orbits another object
a) Solar system
b) Sound wave
c) Satellite
d) Rocket
The study of the mechanics of how fluids flow
a) Energy
b) Fluid dynamics
c) Fusion
d) Induction
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