Graph representing positive acceleration

A graph showing velocity vs. time with a positive slope.

Negative acceleration diagram

A graph depicting negative acceleration shows a decrease in velocity over time.

Zero acceleration diagram

A graph depicting zero acceleration shows constant velocity over time.

Calculate the speed of a vehicle traveling 1500 meters in 60 seconds.

Speed = $$\frac{Distance}{Time}$$ = $$\frac{1500 m}{60 s}$$ = $$25 m/s$$

An object at rest stays at rest; an object in motion stays in motion until an outside force changes it.

F = ma; Less Mass and More Acceleration (indirect relationship) and more force and more acceleration (direct relationship).

For every action, there is an equal and opposite reaction.

Resistance of an object to change its motion.

Forces are equal and opposite; objects do not move.

Force that opposes an object's motion, moving opposite to the applied force and trying to slow and stop the object.

The force that allows some materials to return to their original shape after being stretched.

Weight of a 210 kg person

Weight = mass \times gravity = 210 kg \times 9.8 m/s² = 2058 N

Force needed to accelerate a 1500 kg boat at 2 m/s²

Force = mass \times acceleration = 1500 kg \times 2 m/s² = 3000 N

The ability to do work and cause change

Stored energy; energy of position

Energy in the nucleus of an atom

Sum of the kinetic and potential energy of an object (moving energy as well)

Electromagnetic Energy

Made of electric and magnetic fields and moves as waves. Does not need a medium.

Example of Potential Energy

Energy stored in a fuel of a car

Example of Chemical Energy

Food, candle, match head, gasoline

Example of Nuclear Energy

Fission (nucleus splits) power plant; fusion (nucleus combined) sun

Rubbing hands together

Mechanical energy is converted into thermal energy

Energy conversion in a match

Chemical energy to thermal energy or electromagnetic (light)

Energy conversion in a gas tank

Chemical energy to thermal energy, mechanical, or electrical

Energy conversion in a green plant

electromagnetic energy (light) to chemical energy (food)

Law of conservation of energy

Energy is not created or destroyed; it just transforms

Relationship between height and GPE

GPE and height are direct. If height decreases, so does GPE. If height increases, then GPE increases.

Relationship between velocity and KE

Mass and KE are direct. If the velocity increases, the KE increases. If the velocity decreases, the KE decreases.

Gravitational potential energy of a 35 kg box on a platform 200 meters above the ground

GPE = mgh; GPE = (35)(9.8)(200) = 68,600 J

Roller coaster diagram with points A, B, X, Y, Z

Greatest GPE: Point W Greatest KE: Point X Least GPE: Point X Least KE: Point W KE and GPE are indirect

A tea kettle becomes hot on a stove.

Conduction when the kettle touches the stove.

The second floor of your house becomes warm by your heater.

Convection because molecules of warm air rise then cool and sink making convection currents.

A baby chick becomes warm under his IR lamp.

Radiation heat moves by waves through the space between the light and the chick.

Physics Concepts of Motion Flashcards

Student preview

71 questions

Show all answers

1.

FLASHCARD QUESTION

Front

The slope of a distance-time graph represents speed.

Back

Speed is the rate at which an object covers distance.

2.

FLASHCARD QUESTION

Front

Positive acceleration

Back

Increase in velocity (speeds up)

3.

FLASHCARD QUESTION

Front

Negative acceleration (deceleration)

Back

Decrease in velocity (slow down)

4.

FLASHCARD QUESTION

Front

Acceleration

Back

Change in velocity over time

5.

FLASHCARD QUESTION

Front

Velocity

Back

Speed with a direction

6.

FLASHCARD QUESTION

Front

Speed

Back

Distance divided by time

7.

FLASHCARD QUESTION

Front

Constant speed

Back

Speed that does not change; speed at every point is the same

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