Force and Motion 1
Force and Motion 2
Force and Motion 3
Force and Motion 4
Force and Motion 5
100
What is the mechanical advantage if the radius of the wheel is 81 cm and the radius of the axle is 9 cm?
What is 9?
100
This is a measure of how fast something moves through a distance in a given amount of time.
What is speed?
100
What unit is used to measure speed?
m/s
100
What unit is used to measure acceleration?
m/s2
100
What is the unit for force?
Newtons (N)
200
What is Newton's First Law of motion?
An object at rest remains at rest & an object in motion will remain in motion unless there is an unbalanced force acting on the object.
200
What is Newton's Second Law of motion?
Objects with larger mass require more force for motion and objects with a smaller mass require less force for motion
200
If a rock and a feather are dropped in a 98-meter-long tube in which there is a vacuum, which one will hit the bottom first?
What is they will hit at the same time?
200
What is Newton's Third Law of Motion?
the Law of Motion that states for every action there is an equal and opposite reaction
200
What happens if there is no force acting upon an object?
It will continue to move at the same speed in the same direction.
300
What would happen if you threw a ball in the air in outer space?
It will travel in a straight line forever
300
Which pair of graphs represents the same motion of an object?
What is Graph #3?
300
How much work does Shawn do if he uses a force of 80 newtons to pull 2 friends on a wagon for 64 meters?
What is 5120 J?
300
If we are calculating net force of an object and we have two opposing forces we need to ___________ the forces to get net force
Subtract
300
A ball with the mass of 156 g was dropped from the same height on Earth. Assuming no other forces acted on the ball, what is the gravitational force (measured in newtons) it experienced as it fell?
1530.36 N
F= (9.81g) x mass
400
To solve for Force what two things do you need to know?
What is mass and acceleration?
400
The velocity of a car changes from 120.0 meters per second north to 80 meters per second north in 10.0 seconds. What is the magnitude of the car's acceleration?
What is 4 m/s2?
400
A change in a moving object's speed or direction is..
What is Acceleration?
400
Three spheres are dropped from a height of 10.0 meters in a vacuum. The data from the results is shown below. Which statement is true?
A. For each additional kilogram of mass, the force of the sphere doubles.
B. The mass and force of the spheres will remain constant if their acceleration is constant.
C. The force of the spheres decrease as the mass of the spheres increase.
D. The acceleration of the spheres is constant, even when the mass and force change.
What is D. The acceleration of the spheres is constant, even when the mass and force change?
400
What is the mechanical advantage of this pulley?
What is 4?
500
The graph represents the motion of a moving car.
At which point in the car's motion is the magnitude of its acceleration the largest?
What is D?
500
How do you find the average speed?
total distance/total time
500
This acts to oppose/resist change in motion....
Inertia
500
A combined force that causes something to move.
Unbalanced Force or Balanced Force?
What is an Unbalanced Force?
500
What slows down the motion of an object or keeps it from starting?
Friction