What are the three kinds of thermal energy transfer?
Describe each....
Convection (Liquids and Gases, Heat Rises Cold Falls)
Conduction (touch)
Radiation (Electromagnetic Waves)
What is the Net force of a balanced object?
0 Newtons
What are on the X and Y axis on a Distance vs. Time graph?
X: Distance (Meters)
Y: Time (Seconds)
What are the units for speed?
meters/ second
mph
km/hr
Give me 4 examples of a direction.
North
Left
Up
Towards the Park
Heat transfers from ______ to _________.
Hot to Cold
What does Newtons First Law state?
What is this runners speed?
0 m/s they are not moving
What is the difference between speed and velocity?
Velocity must include direction.
What is the distance?
What is the displacement?
distance = 7m
displacement = 5m NE
What form of heat transfer can travel through a Vacuum?
Radiation can travel through a vacuum (empty space) does not need a medium.
However it can travel through air as well!
True or False: A balanced object is ALWAYS at rest.
False: Constant Speed is also balanced.
Which line is the fastest constant speed?
Line A
What is the formula to calculate speed?
Draw the triangle!
speed= distance/ time
Underline Distance and circle Displacement:
The boy ran a total of 5 miles ending 3 miles north from where he started.
The boy ran a total of 5 miles ending 3 miles north from where he started.
Describe Kinetic Energy of particles at different temperatures.
At hot temperatures they...
At cold temperatures they...
At hot temperatures they...move faster.
At cold temperatures they...
According to Newtons 1st Law why would you fly forward in a car accident without a seatbelt?
Because an object in motion stays in motion.
Which line represents the slowest constant speed?
what is the speed of a dog that ran for 100 meters in 25 seconds?
4 m/s
What is a vector quantity?
Contains Magnitude and Direction
When will thermal energy stop transferring between two objects?
When they've reached thermal equilibrium! (Same temperature)
Draw a box with two forces acting on it making it move with a Net force of 10 N to the right.
Teacher will check.
Green shows:
Blue Shows:
Red Shows:
Green shows: Fast Constant Speed
Blue Shows: Acceleration
Red Shows: Constant speed, Rest, Then Return to staring point.
What is the formula for calculating Velocity?
What is the displacement of a man that drove 600m in a circle?
0m he ended in the same place he started.