4.04 Let the unbalanced force be with you AND 4.05 Motion Factors
4.07 Simple Machines
100
A car travels 150 miles at 50 mph. Time = distance divided by speed
What is 3 hours?
100
The less massive and object is the less of this is needed to move it.
What is force?
100
A force that that pulls objects to earth.
What is gravity?
100
An example of this force can be observed during a kickball game when the ball is pitched, but the force between the ball and the ground makes the ball stop before reaching the kicker.
What is friction?
100
A screwdriver is used to pry a can top open.
What is a wedge?
200
A dog runs 5 meters in 1 second; runs 11 meters in 2 seconds.
What can you say about the speed of the dog?
200
A wagon being pulled across a field.
What are unbalanced forces?
200
A form of energy that relies on weather conditions but does not use fuels formed from the decayed remains of plants or animals such as coal or oil (fossil fuels).
What is wind energy?
200
The surface that has the greatest friction on a rolling object (concrete floor or carpet)
What is carpet?
200
Roller skates, door knobs, and a wagon.
What is wheel and axle?
300
A moving object has unbalanced forces acting on it..
What is speeding up?
300
The force responsible for an object's change in motion and position.
What is an unbalanced force?
300
One marble hits another marble and comes to a stop. The other marble moves.
What is momentum transfer?
300
When predicting the outcome of a race involving different sized cars down a ramp you must consider: mass, amount of force, distance, and this.
What is slope?
300
Using a hoe or a tool like that to cut and dig into soil.
What is a wedge?
400
To find this use the formula distance/time (d divided by t)
What is speed?
400
A person sitting in a chair
What is balanced forces?
400
Moving air is primary force imaking an object move on water.
What is a sailboat sailing?
400
Sled on grass has more than a sled on snow or ice.
What is friction?
400
When raising a flag on a flagpole, you are using this type of simple machine?
What is a pulley?
500
A person using a stopwatch, measuring tape and a compass is most likely measuring this.
What is motion?
500
Two people vs. four people in a tug-of-war with no movement
What are balanced forces?
500
An example of gravity providing energy to move a person on a playground
What is a person going down a sliding board??
500
Large box and a small box with different masses; use a balance and a ruler
What is how to study how their different masses affect the distance of a slide or movement?