Force
A place or object (like a stop sign or mailbox) used for comparison to determine if another object is in motion is called a
reference point
If the net force on an object is zero, an object at rest will stay at rest, and a moving object will continue moving in a straight line with constant speed. What law is this?
is the ratio of the total distance an object traveled compared to the total time is what type of speed?
Average speed
As the distance between two objects increases, the gravitational attraction between the two objects —
decreases
A sphere that includes the sold Earth; the core, mantle, crust, and soil layers
Geosphere
The direction and the distance, in a straight line, from the initial starting point to the ending point is called
displacement
How is motion related to balanced and unbalanced forces? Which one changes the motion and which one does not.
Balanced forces do not change the motion of an object; unbalanced forces do.
Thee rate at which an object is moving at a given instant in time is what type of speed?
Instantaneous Speed
As the planet's distance from the sun increases, the orbital velocity.....
decreases
A sphere that includes the liquid ocean, inland water bodies, groundwater, as well as all the frozen water on Earth.
Hydrosphere
Jerry walked from home to school, then from the school to the park. What is his total distance?
Home ------5 KM ----- School
School ---3 KM ---Park
8 km
An object will resist a change in motion because of I_____.
What is the average speed of a helicopter that flies 100 km in 40 minutes and then 60 km in 20 minutes?
Average Speed = total distance/total time
Average speed = 160 km/hr
The relationship between the orbital period and the orbital velocity that the longer the orbital period ....
slower the orbital velocity.
earths layers
Jerry walked from home to school, then from the school to the park. What is his total displacement?
Home-----5 km-----School
School ---3km ---Park
2 km
What effect does mass have on the inertia of an object?
Objects with a greater mass have greater inertia
What is the average speed of a lizard that runs 100 meters in 40 seconds and then runs an additional 50 meters in 20 seconds?
Average Speed = total distance/total time
Average Speed= 2.5 m/second
Mercury , Venus , Earth , and Mars are the...
The inner planets
In order to be considered habitable, what characteristics must a planet have?
Liquid water, atmosphere, temperature . radiant energy , and nutrients.
What is the net force ?
1. 8 N <-------- []----> 4N
2.
2 N--> & 4 N----> [] <----- 5 N
1. 4 N to the left
2. 1 N to the right
What will happen to a rolling ball due to friction and other forces, such as gravity?
Stop rolling
For each of the following identify if the motion is describing speed or velocity and provide your justification
1. Monarch butterflies fly 12 mi/hr south as they migrate.
2.A greyhound dog can run about 40 mi/hr.
3. Canadian geese can fly approximately 75 miles in 3 hours.
4. A trip from Austin to Dallas takes about 3 hours going 65 mi/hr north.
1. Velocity ; Speed with direction
2. Speed ; no direction given
3. Speed; only distance, no time
4. Velocity ; speed with direction
These planets are known as the gas giants , have many moons, are farther away from each other , have ring systems , and have a density of less than 2.0 g/cm3.
Outer planets ; Jupitar , Saturn, Uranus , and Neptune
Is Mr. Sanchez cool ?