Motion
Specify the following units:
1. mi/hr
2. cm
3. km
1. what is miles per hour?
2. what is a centimeter?
3. what is a kilometer?
What is net force?
A) The sum of all forces acting on an object.
B) A pulling force between every object in the universe, regardless of mass.
A
True or False:
Potential Energy is built up energy released.
False
Is Iron a conductor or an insulator?
Conductor
Speed is the _______ of distance and time.
solution
What is the mass of a falling rock if it produces a force of 147 N?
15 kg
What is the opposite of Kinetic Energy?
Potential Energy
Conductors are materials that...
A) Allow heat to pass through
B) Prevent heat from passing through
C) Allows and also prevents heat from passing through
D) Stop cold from passing through
A) Allow heat to pass through
What is the equation for speed?
Speed = Distance / Time
What is Newton's first law called?
Law of Inertia
What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s?
16875 J
Gloves keep your hands warm during the winter because..
A) They are heat conductors
B) AJ said they would
C) They are conductors of electrical energy
D) They are insulators
D) They are insulators
AJ walked to Coach Berry's house with a speed of 1.4 m/s. The distance between the houses is 205 m. How long did the trip take AJ? Why would he be going to Coach Berry's house?
146.43 seconds
Even though she is way ahead of you, Sally switches her car to run on oxide fuel. The nitrous oxide allows her car to develop 10,000 N of force. What is Sally's acceleration if her car has a mass of 500 kg?
20 m/s^2
the __________ an object moves, the more kinetic energy it has
faster
True or False:
A series circuit can have more than one source (aka a battery)
True
Coach Berry runs 10 miles east and then 12 miles north. What is the distance? What is the displacement?
Distance = 22 miles
Displacement = 15.6205 miles
When was Issac Newton (creator of the 3 laws) born?
A) February 12, 2008
B) June 11, 1623
C) December 67, 2132
D) January 4, 1643
D
January 4, 1643
On a roller coaster, when is it's potential energy at it's highest?
At the roller coaster's peak.
Series or parallel? As more batteries are added, the lights will not get brighter. The voltage does not increase, but the batteries will last longer.
Parallel circuit