41 terms

# Balanced and Unbalanced Forces, Forces

#### Terms in this set (...)

Balanced rope
a. unbalanced rope
b. balanced rope
Balanced box
a. balanced box
b. unbalanced box
Unbalanced -5N
a. balanced -5N
b. unbalanced -5N
Balanced truck
a balanced truck
b. unbalanced truck
Balanced tug of war
a. balanced tug of war
b. unbalanced tug of war
Unbalanced -100N
a. balanced -100N
b. unbalanced -100N
Balanced Force 0N
a. unbalanced 10N
b. balanced 0N
Balanced parked
A truck parked on the road.
a. balanced parked
b. unbalanced parked
Unbalanced accelerating
A car accelerating (increasing speed) on the highway.
a. balanced accelerating
b. unbalanced accelerating
Balanced sit
A person sitting in a chair remaining still.
a. balanced sit
b. unbalanced sit
add
To find the net force when forces are pushing or pulling in the SAME direction, ________ them together.
subtract
To find the net force when forces are pushing or pulling in OPPOSITE directions, ________ the smaller force from the larger force.
balanced zero
When the net force is zero
a. balance zero
b. unbalance zero
unbalanced greater than zero
When the net force is a number greater than zero, the forces are ________.
a. unbalanced greater than zero
b. balance greater than zero
10 N right
What is the net force in the picture above?
0 N
What is the net force in the picture above?
25 N left
What is the net force in the picture above?
120 N down
What is the net force in the picture above?
7 N down
What is the net force in the picture above?
unbalanced cube
Are the forces pushing on this box balanced cube, unbalanced cube, or combined?
balanced cube
Are the forces pushing on this box balanced cube, unbalanced cube, or combined?
unbalanced square
Are the forces pushing on this box balanced square, unbalanced square, or combined?
N
What is the abbreviation for Newtons?
Newton
Term/unit used to describe force
Forces
Push or Pull
Unbalanced Force
unequal forces: causes a change in the object's motion
Balanced Force
equal forces; does not change an object's motion
Friction
a force that two surfaces exert on each other when rub against each other (slows objects down to a stop)
Gravity
the force that pulls objects toward each other
Mass
the measure of the amount of matter in an object
Weight
the gravitational force exerted on a person or object at the surface of a planet
Air Resistance
a type of fluid friction that acts on objects going through the air
Motion
The state in which one object's distance from another is changing
Speed
how fast object move over a given distance
Acceleration
a change in speed
Calculate the speed. Distance traveled is 100m in 20 s.
5m/s
Calculate the speed. A car travels 5meters in 10 seconds.
0.5m/s
Calculate the speed. A car travels 10m in 5 seconds.
2m/s
Calculate the speed. A train travels 42 m in 7 seconds.
6m/s
A car moves with 4N to the left, another with 2N to the right. Which describes the motion of the two cars
They will accelerate steadily to the left with 2N.
A car moves with 3N to the left, another with 1N to the right. Which describes the motion of the two cars?
They will accelerate steadily to the right with 2N.