CATEGORY 1
Find the momentum of a 1200-kg owner jeep traveling at a velocity of 25 m/s.
30,000 kg.m/s
Give the unit of Work
Joules
Sir Winston goes to the supermarket to buy groceries for his friends. He first walks 10 m east, then continues 20 m north. What is his overall resultant vector?
22 m
A way of expressing very large or small numbers using powers of 10
Scientific Notation
What do we call the total time a projectile stays in the air?
Time of Flight
A baseball bat exerts a 500 N force on a ball for 0.1 seconds. What is the impulse delivered to the ball?
50 N.s
Give the two factors that affect kinetic energy
Mass and Velocity
A cyclist covers a distance of 60.0km in 2.6 hours. What is the rider's speed?
23. 076 km/hr
What is the SI unit of mass?
kg
What do we call an object that is thrown into the air and moves under the influence of gravity only?
Projectile
How many millimeters are contained in one hectometer?
0.00001
The impulse a body receives is equal to the change in which quantity?
Momentum or Kinetic Energy
Momentum
At a certain point, a particle experiences a 20 N force while moving with a velocity of 5 m/s. What is the power produced by this force?
100W
One kilometer is equal to how many meters?
1000 meters
A physical quantity that has magnitude and direction.
Vector Quantity
What term is used for the motion of an object that experiences constant acceleration?
Uniform Motion
During any collision, what quantity always stays constant?
a. Total momentum
b. Total Velocity
c. Kinetic
A
Over a span of 10 seconds, an elevator raises a 1000 N load through a height of 10 meters at constant speed. What is the elevator’s average power output during this interval?
1000 W
When you push against a wall, the wall pushes back with equal force. Which Law of Motion describe this example?
Third Law of Motion
What do we call the rate of change of velocity with respect to time?
Acceleration
When a car suddenly moves forward, why does our body seem to be pushed backward?
Law of Action-Reaction / Law if Interaction
What are the two main categories of frames of reference?
a. true's and fictional
b. inertial and non-inertial
B
What is the mathematical formula for Newton’s Second Law.
F=ma (Force = mass × acceleration)
The single vector that represents the combined effect of two or more vectors.
Resultant Vector
It is the total path traveled, regardless of direction (scalar).
Distance