Vocab 1
What is "the amount of matter in an object"
Mass
This is a measure of how fast something moves through a distance in a given amount of time.
Speed
What is the equation for speed?
Distance / time
What is the rate of earth's gravitational acceleration? (with correct units)
9.8 m/s2
What are levels of organization in increasing order from smallest or largest.
Cell > Tissue > Organ > Organ system > Organism
What is "to apply a force"
Exert
What is the definition of kinetic energy?
Energy of an object due to its movement.
What is the SI unit of force?
Newton
Who is the director of ACM, and who is her niece that is in film school?
Dr. Ana Gonzales and Claire Gonzales
What is the equation for kinetic and potential energy?
KE= 1/2mv2
PE= weight x height or 9.8 x mass x height
What is "speed in a particular direction"
Velocity
What is matter?
Anything that has mass and takes up space
Who is the scientist that came up with the 3 laws of motion?
Isaac Newton
True or False? A more massive object will exert a greater amount of force in a collision.
False- all objects will experience equal and opposite force. Mass plays a role in the change in velocity & the impact of the crash.
How does the law of conservation of energy apply to the roller coasters that you built?
What is the definition of friction?
The force between and object and the surface it is moving obver.
The moment when two objects hit each other
Collision
At dinner, Michelle passed the pepper shaker to her brother by sliding it across the wooden table. Why did the salt shaker gradually slow down and come to a stop?
The table exerted a force that is opposite to the salt shaker's motion- friction
What happened during the failed space mission that caused the pod to move in the opposite direction?
The pod was more massive due to a greater number of asteroids. The thrusters did not fire with enough force to stop the pod.. instead it slowed the pod causing to slow down, then hit the space station and move in the opposite direction.
What happens to the kinetic energy of an object when it is slowed due to friction.
It gets converted to thermal energy which gets released as heat.
What is the "gravitational acceleration of an object according to its mass"
Weight
What is the definition of force?
The push or pull that changes the motion of an object
What are the ways velocity can change?
1. Speed up
2. Slow down
3. Stop
4. Start moving
5. Change direction
What is inertia?
An object in motion wants to stay in motion. an object at rest will stay at rest.
What type of weather does a cold front bring?
Windy & lots of heavy precipitation