A reference point is a place or object used for comparison to determine if somethigns is in motion.
100
What do units do scientist use to describe distance?
SI Units
100
What is the tendency of an object to resist change in its motion
Inertia
100
What is example an example of deceleration.
Answers vary.
100
If a car is speeding up, its initial speed is ____________________ than its final speed.
Less.
200
How do you know when an object is in motion?
An object is in motion if the distance between objects are changing.
200
Complete the following sentence. When you are measuring distance, you are measuring _________.
Length.
200
The law of universal gravitation states that any two objects in the universe without exception will do what?
Attract each other.
200
Why does the moon accelerate?
The moon accelerates because it is continuosly change direction.
200
The force of gravity is responsible for continuously changing the ____________________ in which a satellite moves.
Direction
300
What are examples of stationary objects?
Tree, Street Sign or Building.
300
What is the length of an object smaller than a meter, often used to measure objects using SI units?
Centimeter (cm)
300
What is the SI unit for Force?
Newton
300
What are the three main way to describe acceleration?
Increase speed, decrease speed, and change in direction.
300
One ____________________ is the force required to accelerate 1 kilogram of mass at 1 meter per second per second.
Newton
400
Are you moving as you read this slide?
The answer to this question is that it depends on your reference point. When your chair is your reference point, you are not moving. But, if you choose another reference point, you may be moving.
400
What is the meaning of the prefixes for the following lengths: kilo, centi, and milli. Your answer must be given in the same order..
Kilo means one thousand.
Centi means one hundred.
Milli means one thousanth
400
Describe motion when forces are balanced and they act upon an object.
Never change the objects motion. The object is still.
400
DAILY DOUBLE!!!!!!! State whether the statement is true or false. If false, change the identified word (ALL CAPS) to make the statement true.
According to Newton's second law of motion, WEIGHT depends on an object's mass and the net force acting on the object.
Acceleration
400
If a train traveling at 30 m/s brakes to a stop in 1 minute, its acceleration is ____________________.