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Physical Sci. 8a-d
force, mass, gel., accel., grav. force
Question | Answer |
---|---|
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 |