Motion & Graphs
This is how fast an object moves
What is speed?
A push or pull on an object
What is a force?
Forces that cancel each other out
What are balanced forces?
The distance between two wave peaks
What is wavelength?
This type of wave can travel through empty space
What is light?
This includes speed and direction
What is velocity?
Newton’s First Law says objects resist changes in motion. This is called
What is inertia?
Forces that cause a change in motion
What are unbalanced forces?
How many waves pass a point per second
What is frequency?
This type of wave needs a medium to travel
What is sound?
A change in velocity over time
What is acceleration?
The formula F = m × a calculates this
What is force?
An object at rest will stay at rest if forces are this
What are balanced?
The height of a wave from rest position
What is amplitude?
The bouncing of waves off a surface
What is reflection?
A flat line on a distance-time graph means this
What is no motion?
For every action, there is this type of reaction
What is equal and opposite?
When net force is not zero, the object will do this
What is accelerate?
Higher frequency means this type of wavelength
What is shorter wavelength?
The bending of waves when entering a new material
What is refraction?
A steep slope on a graph shows this about motion
What is speeding up?
If force increases and mass stays the same, acceleration does this
What is increase?
A soccer ball being kicked is an example of this type of force
What are unbalanced forces?
Waves with greater amplitude carry more of this
What is energy?
Why you see lightning before hearing thunder
What is light travels faster than sound?