Show:
Speed/Acceleration
Simple Machines
Speed Problems
Balanced/Unbalanced Forces
Space/Space Travel
100
What is acceleration?
What is a change is speed OR direction.
100
Finish the statement: The _______________ the inclined plane, the _____________ the job
What is longer, easier
100
In a speed problem, which number goes in the dog house?
What is distance
100
What is the movement of the object considering the forces: <---- 250N 375N ---->
What is the cart will accelerate to the right.
100
What holds all of the planets in order?
What is gravity
200
What is the formula for speed?
What is speed=distance over time
200
Finish the statement: The ____________ pulleys, the ____________ force
What is More, Less
200
A train travels a total distance of 640 kilometers. If the train travels for 8 hours, what is its average speed?
What is 80 km/hr
200
Two students are pushing a desk, the forces are: <-------350N 325N-------> How will the desk move?
What is the object will accelerate to the left.
200
Why do planets orbit the sun?
What is The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.
300
**SPACE** Draw a picture of how the Sun, Earth, and moon interact with each other.
What is the sun should have a circle around it with the earth on that circle. The earth should have a circle around it with the moon on that circle.
300
What is a simple machine?
What is a machine with few parts used to make your load easier by decreasing the force
300
The person running in front of you in Pre-CA just ripped a smelly fart. You know you need to get past them in order to get some fresh air. You need to get 40 meters in front of them in 20 seconds before they unleash another one. What speed will you have to travel at to make this happen?
What is 20 m/s
300
How do you know that the forces are unbalanced?
What is the object starts to move
300
What force causes Venus to travel along a curved path instead of moving in a straight line?
What is Gravitational attraction between the sun and Venus
400
A camper hikes on a mountain trail. Because of the uneven trail surface and slope, the camper’s hiking speed changes along different parts of the trail. Draw a graph to represent those changes.
What is your line should have various lines because the hiking trail isn't straight. They would not just be at a constant speed. They would be speeding up, constant, slowing down, and stopping all mixed together
400
Draw two different ramps, label which one would have the greater amount of force and why
What is the shorter of the two ramps will give you the least amount of force. That is because you are stretching the force out over a longer distance.
400
A mail truck takes 40 seconds to move between mail boxes that are 20 meters apart. What is the average speed of the mail truck in meters per second? Record your answer on the answer document with units of meters per second.
What is 0.5 m/s
400
A girl is pulling on one end of a rope while her dog pulls in the opposite direction on the other end. The forces on the rope are unbalanced. What is true about the center of the rope?
What is it will accelerate in the direction of the greater force.
400
Space probes have historically been used for many purposes. What statement below would be another reason that NASA would likely send a probe into space?
What is to gather data about Saturn’s climate and surface features
500
Which number in a speed problem ALWAYS goes in the doghouse?
What is DISTANCE
500
As a 10 meter ramp gets taller, what happens to the amount of force to pull up an object?
What is the amount of force becomes greater
500
Javelinas need strong leg muscles to help provide enough force for them to accelerate to high speeds. This fast movement can help Javelinas escape from predators and reach the safety of the pack. If a Javelina runs 42 meters in 6 seconds, what is its average speed?
What is 7 m/s
500
If an object moves in a straight line in space, how does it change directions?
What is an unbalanced force must act on it
500
If the most massive object in our solar system, the Sun, suddenly disappeared, how would the motion of the planets be affected?
What is the planets would move in a straight line out into space.