F=ma
Jason pushes a 5kg box with a Force of 15N. What is the acceleration of the box?
3 m/s2
What is the only force that acts on a projectile, ignoring air resistance?
Force of Gravity
What is the difference between speed and velocity?
Velocity requires a direction
What is the equation used to calculate momentum?
p=mv
What is Mrs. Weaver's wife's name?
Ashley
What do each of the variables stand for in the equation F=ma?
F = Force
m = mass
a = acceleration
Marvin throws a football with a force of 39.2N. What is the mass of the football?
4 g
Geoffrey accelerated from a pace of 2 m/s to 8 m/s over the course of 2 seconds. Calculate his acceleration.
3 m/s2
Provide an example of a person with momentum
Answers will vary, any person in motion
Where did Mrs. Weaver go to college?
Mount St. Mary's University
What are the correct units of measurement for mass and acceleration?
mass is measured in grams (g) or kilograms (kg)
acceleration is measured in m/s2
What is the acceleration of gravity?
9.8 m/s2
What are the three situations where an object or person might experience acceleration?
speeding up, slowing down, changing direction
Lacey runs with a velocity of 20 m/s, calculate her momentum if she has a mass of 88 kg.
1,760 kg*m/s
The Weavers have two cats - one is 2 years old, the other is 7 years old. Can you name one of them?
Sybil and Phoebe
Michelle drags a 15kg chair to her desk. If the acceleration of the chair is 2 m/s2, what is the Force exerted on the chair?
30 N
A 5kg soccer ball is kicked across the field. Calculate the Force acting on the ball after it leaves the ground.
49 N
Jenni started at the finish line of a track and ran 1 mile around the track in 10 minutes. Calculate her speed and velocity when she crossed the finish line.
s = 0.1 mile/minute
v = 0 miles/minute forward (bc displacement is 0 miles forward)
Jerry (a squirrel with a mass of 4 kg) runs around the yard with a momentum of 64 kg*m/s. Calculate Jerry's velocity.
16 m/s forward
What other classes has Mrs. Weaver taught at FHS?
American Government, Honors Physics, Honors Earth Systems
Who is the unit of measurement for Force named after?
Isaac Newton
(Newton, N)
What variable do you use to represent the acceleration of gravity in an equation?
ag
If a plane accelerates from a velocity of 1,500 m/s to rest in 10 seconds after hitting the runway, calculate the plane's acceleration.
-150 m/s2
If Object A has a mass of 20 grams, and Object B has a mass of 200 grams, but both are moving with the same velocity, do they have the same momentum? Explain.
No, Object A has less mass so will have less momentum than Object B.
Which sport did Mrs. Weaver play in high school AND coach at FHS?
Soccer