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Science (Sarah)

Unit 6

QuestionAnswer
Newton realized that all objects in the universe have gravity. He called this what? Universal Law of Gravitation
If the distance between two objects is doubled, the gravitational force between the objects ? decreases
Acceleration can be increased by? decreasing mass
The angle between geographic north and magnetic north is called? magnetic declination
The tendency of an object to resist change in its motion in? inertia
The Law of Universal Gravitation: any two objects in the universe will? attract each other
What is the force that pulls falling objects toward Earth's center? Gravity
Earth's magnetic field is created by spinning of the? outer core
What explains how a rocket is lifted off of the ground? Newton's Third Law of Motion
What is the measure of the force of gravity on a person weight
What is the amount of matter in an object? Mass
The earth's magnetic field DOES OR DOES NOT keep satellites in orbit? Does Not
A rocket must have what to lift-off into space? thrust that is greater than Earth's gravity
An object following a straight line path at a constant speed has what? zero acceleration
The force of gravity is weaker or stronger on the moon than on earth? weaker
Which has more mass, a kilogram of feathers or a kilogram of iron? Neither, they have the same mass
How much force is needed to move a 4 kg book to an acceleration of 2 m/s? Use F=ma
A compass points north because? The magnetized compass needle aligns itself with Earth's magnetic field
If I hit a nail with a hammer, where is the force? one the nail and on the hammer
A kid catches a ball. If the impact of the ball hitting the kid's baseball glove is the action, what is the reaction? The force the glove exerts back on the ball
The strength of gravity depends upon ? Distance and mass
Earth remains in orbit around the sun because of? inertia and gravity
According to Newton's 3rd law, if you push gently on something, it will? push gently on you
Created by: tmgriffith
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