Motion and Forces
What to use?
Forces by other names
Balanced or Unbalanced?
Gravity
100
This force will eventually cause a ball rolling on the floor to stop.
What is friction
100
The two things that affect gravitational force.
What are mass and distance
100
Another name for air resistance.
What is drag.
100
A baseball is hit by a bat.
What is Unbalanced
100
The Earth's gravity is stronger than the Moon's gravity because the moon has less of this.
What is mass
200
These two forces always oppose motion.
What are friction and air resistance
200
This is the name of the units for force.
What is Newtons
200
This is an applied force that causes an airplane to move forward.
What is thrust.
200
A car is driving at 70 miles per hour on the interstate. The people inside are riding comfortably.
What is Balanced.
200
Two climbers are climbing Mt. Kilimanjaro. Rachel is 50 ft from the top while Tony still has 4,000 ft to climb. This climber experiences less effect from Earth's gravity.
Who is Rachel
300
This force causes all objects to be pulled toward each other.
What is gravitational
300
Speed is calculated using these two measurements.
What are distance and time
300
The applied force caused by an airplane's wings.
What is lift.
300
A soccer ball is sitting in the middle of the field before the game begins.
What is balanced.
300
This is the set of objects that exert gravitational force.
What are all objects
400
This force can push or pull certain metal objects without contact.
What is magnetic
400
This is a measurement of the amount of matter in an object.
What is mass
400
This is the name given to the effect of gravity on an object's mass.
What is weight
400
Two teams are playing tug of war. One team is slowly being pulled forward.
What is unbalanced.
400
As you sit in your chair, this force opposes gravity.
What is the normal force
500
Two friends are moving a large box. Jim is pushing to the right with 100N, Suzanne is pulling to the right with 75N. Friction is providing 80N of force. This is the net force on the box AND the direction will it move.
What is 95N to the right
500
Changes in velocity are called this.
What is acceleration
500
Compression is an example of this kind of force.
What is applied force
500
A person on a skateboard, riding up the side of a ramp before attempting a Swith McTwist.
What is unbalanced.
500
When a skydiver jumps out of an airplane, gravity is eventually balanced out by this force. Later it increases because of the parachute.
What is drag (air resistance)