Friction
Draw me
Speed related
Newton's Laws
Force
100
True or False. A bike on grass is a form of friction?
What is true?
100
Draw me an example of the 1st law of motion
An object in motion/rest will stay in motion/rest unless an unbalanced force acts upon it
100
A man is skydiving and has traveled 2500 Meters in 2 minutes. How fast is he going per second? Round to the nearest Hundredth
20.83 m/s
100
A bowling ball is rolling with a 10N. What can stop it and why(give me details)?
anything with a greater force,
an object in motion will stay in motion, unless an unbalanced force acts upon it.
100
How do you calculate force?
Draw the triangle
200
Which is a form of decreasing friction intentionally? A. Putting snow tires on a car when the road is icy. B.Oil on a a squeaky door hinge. C.Wearing cleats in field sports. D.None of the above.
B.Oil on a squeaky door hinge
200
Draw me an example of the 3rd law of motion
for every action there is an equal and opposite reaction
200
What is the difference in Speed and Velocity?
Speed is distance over time
Velocity includes direction
200
A rocket taking off is an example of which of Newton's laws?
A.1st B.2nd C.3rd D.8th
3rd
200
What is the mass of the object if it is traveling 5m/s with a force of 150 N?
30 kg
300
What is the definition of friction? Be close to the answer for credit.
when two surfaces rub together and prevents or slows motion.
300
Draw me this graph.
1. Is at a constant speed
2. for some reason it becomes stationary for a bit
3. goes to a constant speed then remains stationary again
4. goes back to its original point
300
This crazy guy is traveling at 25 m/s. What would happen to his speed if a strong gust of wind goes against him?
His speed will decrease
300
Which of Newton's laws states: That an object at rest will stay at rest and an object in motion will stay in motion at a constant velocity, unless acted upon by an unbalanced force.
A.1st B.2nd C.3rd D. All of the above
1st
300
The man is applying force of 38N to push a box across the room. If the force of friction resisting the man's push is 20N, what is the net force acting on the box.
18N
400
True or False. Using snow tires on an icy road is an example of increasing friction.
True
400
Draw me a tug of war battle of an unbalanced force
and
balance forced
see examples
400
Which points in the roller coaster experienced unbalanced forces? Explain your answers.
2: Speed will increase
4: Speed will decrease
400
If the skateboarder were to jump off the board to the right, where would the board go to? (Action-reaction)
The board would go to the left
400
San Juanita hits a ball with a mass of .8 KG. The ball accelerates to 1300 m/s. What is the Net force of the ball?
104N
500
The sudden movements of plates is caused by?
a. mass of the plates b. weight of the plates c. unbalanced forces d. gravitational force
C. Unbalanced forces
500
Draw 2 examples of something accelerating
see examples
500
Give me 3 examples of acceleration?
Observe notes
500
Describe the parts of the graph. use words like stationary/rest, constant, backwards
The object traveled at a constant speed for 5 seconds.
Remained stationary from 5-10 seconds, a total of 5 seconds.
Went back to its original location for 2.5 seconds
500
These four men apply the same force to each box. Which has the greatest change in speed?
Blue: 27 kg Green: 38kg
Purple: 19 kg Red: 13 kg
Red @ 13 kg