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Force 1
Force 2
Force 3
Force 4
Force 5
100
What is a change in position relative to a reference point, such as north, south, east, west, up, or down?
What is motion?
100
A bus is moving at a constant velocity of 30m/s, how can it change its velocity and become unbalanced?
What is by increasing its velocity or turning a corner?
100
Explain where the potential and kinetic energy is on top of a roller coaster hill and going down the hill and how some of the mechanical energy changes into thermal energy.
What is as you go up and down a roller coaster hill potential energy is converted into kinetic energy and back again. There is friction between the car's wheels and the track between the cars and the air around them. Some of the mechanical energy changes into thermal energy because of friction.
100
Fill in the missing energy conversion: Light bulb: electrical energy---> ____ and ____ energy
What is light and thermal energy?
100
What is the net force on an object when you combine a force of 7N north with a force of 5N south?
What is 2 Newtons North?
200
What is the distance traveled by an object divided by the time taken to travel the distance?
What is speed?
200
What is a push or pull exerted on an object in order to change the motion of the object.
What is force?
200
Does the energy get lost or conserved when mechanical energy changes into thermal energy with the roller coaster's car's wheels and the roller coaster track? What is the name of this law?
What is the energy is never lost; it is conserved. This is called the law of conservation of energy.
200
Fill in the missing energy conversion: hair dryer:electrical energy---> _____ energy
What is thermal energy?
200
How many Newtons does an object have to have to be balanced?
What is Zero Newtons?
300
Find the speed of a hot air balloon traveling at 50m in 10s.
What is 5m/s?
300

YaHoo ... Free Points!!

add 300 points

300

YaHoo ... Free Points

Add 300 points

300

Describe the flow of energy from coal to the wall outlet.

coal burns and heats water into steam which turns turbines connected to generators and goes through a series of transformers and wire to the outlet.

300
Give two examples of balanced objects.
What is a light hanging from the ceiling and a bird's nest in a tree?
400
What is the speed of an object in a particular direction?
What is velocity?
400
What is the energy of an object that is due to the object's motion?
What is kinetic energy?
400
Fill in the missing energy conversion: Alarm clock- electrical energy---> _____ and _____ energy
What is light and sound energy?
400
What is the combination of all of the forces acting on an object?
What is net force?
400
Give two examples of objects that are unbalanced.
What is pulling on the door of a cabinet causes the door to open and a soccer ball moving because the players exert an unbalanced force on the ball each time they kick it?
500
How can velocity change?
What is by changing speed or changing direction?
500
What is the energy that an object has because of its position, shape, or condition of the object?
What is potential energy?
500
Fill in the missing energy conversion: Battery: _____ energy ----> electrical energy
What is chemical energy?
500
How do you determine the net forces that act in the same direction?
What is add all of the forces?
500
Compare and contrast balanced and unbalanced forces.
What is balanced forces and unbalanced forces both involve some type of force. Balanced forces will not cause a change in motion where unbalanced forces cause a change in motion.