Motion
An object at rest stays at rest; an object in motion stays in motion unless acted on by an outside force.
What is 1st Law of Motion?
Not equal → cause a change in motion (start, stop, accelerate, decelerate, change direction).
What is unbalanced forces?
The energy of motion and stored energy
What is kinetic and potential energy?
The total energy in a closed system remains constant because energy cannot be created or destroyed, only transformed.
What is the law of conservation of energy?
heat transfer through waves
What is radiation?
_____________ requires more force than lighter objects to accelerate at the same rate.
What is heavier objects?
Equal in size, opposite in direction → no motion change.
What is balanced forces
An object falls and this transformation happens
What is PE → KE?
A lamp converts
What is Electrical to light
heat transfer by direct contact
What is conduction?
True or False: The motion of an object is based on mass and forces.
What is true?
An object starts moving after being pushed. This is caused by an _________.
What is unbalanced forces?
Kinetic energy increases when...
What is speed increases?
This object is an example of solar energy.
What is the sun?
When one object is hotter and the other is lower, eventually the temperature will become _______________.
What is they will become equal over time?
A car and truck are moving at the same speed and direction which causes equal ___________.
What is velocity?
On a speed vs time graph, the slope of the line is going upward. This represents ________.
What is accerlation?
These are the two factors that affect kinetic energy.
What are mass and velocity (or speed)
In a microwave, electrical energy changes to ____________.
What is thermal energy?
The flame from a burner is high because of the warm air molecules that rise through the process of _________________.
What is convection?
Acceleration of a moving bicycle is ______ but __________
What is constant but non-zero
On a distance vs time graph, the curve upward line is __________.
What is acceleration?
These are the two factors that affect gravitational potential energy of an object.
What are the mass and height of an object?
A car engine transforms:
What is Chemical → Mechanical?
Volcanoes erupting and lifting dark black clouds relates to the convection, conduction, or radiation
What is convection?