Forces
force is defined as
push or pull on an object
the measurement of the amount of energy transferred by a wave
amplitude
light bounces off an object is known as
reflection
what is the definition of kinetic energy
moving energy
explain potential energy
energy that is not moving
When applied force, solid objects always
bend and deform
measured in Hz, the number of occurrences of a repeating of a repeating event per unit of time
frequency
light cannot pass through is known as
opaque
does increasing the speed or mass of a moving object increase or decrease its kinetic energy
increase
give 3 examples of potential energy
pencil on desk, skateboarder on top of cliff, on top of rollercoaster, sitting in desk
Newton's first law of motion is defined as
an object at rest stays at rest, an object in motion stays in motion
how would pressing a piano key harder change the sound wave that is produced?
The sound wave’s amplitude and energy would increase
if something is considered transparent, what does that mean?
light can pass through without anything blocking it
true or false: the more kinetic energy an object has, the more damage it will cause in a collision
true
at what point would a skater have the highest potential energy?
top of skateboard park (hill)
the speed in combination with the direction of motion of object is known as
velocity
the degree of highness or lowness of a tone
pitch
light beaming on an fish tank is an example of
refraction
true
true or false: kicking a soccer ball is an example of potential energy
false: kinetic
explain contact forces and give an example
contact force is two objects colliding that causes deformation or damage (car wreck/football)
most instruments ______ back and forth to produce sound
what conditions are needed to be met in order for people to see an object
eye, object to see, light source, unblocked path between the object and eye
when a vehicle gains speed within a short amount of time
acceleration
true or false: going up the rollercoaster is considered potential energy
false