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# Physical Sci. 8a-d

### force, mass, gel., accel., grav. force

The resistance of any physical object to any change in its state of motion inertia
What happens to an objects downward velocity as it falls to Earth? Increases by 9.8 m/s for every second it falls
Distance is equal to Speed x Time
Speed is equal to Distance divided by Time
Time is equal to Distance divided by Speed
When would an action and a reaction force not cancel themselves out? When the forces act on two different objects
What does Newton's second law of motion say about acceleration? increases as mass decreases
Without gravity, a dropped feather and rock will land??? At the same time
Newtons 3rd law states that for every action there is...? An equal and opposite reaction
Gravitational velocity increase every second by how much? 9.8 m/s
What is an objects velocity after falling for 10 seconds? 98 m/s
Which of Newton's laws explains Enertia? First law
A moving object not acted upon by an unbalanced force will...? Remain in motion
Why do bubbles rise? They are less dense than water
Newton's second law says that Force is equal to...? Mass x Speed
Force is measured in...? Newtons
What materials can flow to fit their container? Gases and Liquids
What is the speed of a plane that travels 5000 meters in 10 sec? 500 m/s
What type of friction is air resistance? Fluid friction
Newton's 1st law applies to what type of objects? Moving and not moving
The distance and direction from its original starting point Displacement
Density is equal to? Mass divided by volume
Volume is equal to? Mass divided by Density
Force is equal to? Acceleration x Mass
Created by: FordLCHS