What is Work in physics?

Force multiplied by distance over which the force acts

axle attached to the center of a wheel and both rotate together.

A pure substance made of only one kind of atom

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C Physics Review May 2023

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Questions 25

Answers

1
Fill in the Blank: Potential energy is referred to as ___________ energy.
Stored
Kinetic
Motion
Mechanical
2
Changing phases of matter from a liquid to a solid
Melting
Freezing
precipitation
Aquifer
3
Where is the proton located within the atomic structure?
What is atomic structure?
It is not in the atomic structure
electron cloud
nucleus
4
What is Work in physics?
Effort exerted on a task
Carrying an object horizontally at a constant velocity
Force multiplied by distance over which the force acts
The use of a force
5
Units for Work
Joule
Newton-meter
Watts
Newton / meter
6
What are the two different simple machines seen here?
pulley, inclined plane
wheel and axle, pulley
wheel and axle, inclined plane
ramp, inclined plane
7
units for energy
meters per second
joules
watts
newtons
8
Why use simple machines?
They give you a work out.
They're fun.
They make work harder to do.
They make work easier to do.
9
wheel and axle
Your forearm works like a third-class lever.
standing on your toes, the foot acts like a second-class lever.
shaft rotate when the handle turns.
axle attached to the center of a wheel and both rotate together.
10
units for power
joules
meters per second
watts
newtons
11
What simple machines make up this ax?
wheel and axle and lever
pulley and wedge
wedge and screw
lever and wedge
12
How do you calculate momentum?
p=mv
m=m'v
m=v/p
m=pv
13
Which below has the MOST momentum?
10 kg moving at 7 m/s
5 kg moving at 20 m/s
2 kg moving at 51 m/s
.6 kg moving at 100 m/s
14
Which of Newton's laws is about inertia?
Third
Fourth
Second
First
15
Conduction only happens in.......
Gases
Liquids
Air
Solids
16
In physics, power is
the rate at which work is done
the rate at which the temperature of an object changes
temperature x time
the momentum of an object
17
Fill in the Blank: Kinetic energy is defined as energy in ____________.
Motion
Florida
Physics
Stored
18
What is an element?
The most basic unit of matter
A pure substance made of only one kind of atom
A special material found in the atmosphere
A compound made of one or more atoms
19
Phases of Matter
liquid
solid
gas
all of these
20
Which of Newton's laws describes the relationship between mass and force?
Newton's Law of Gravitation
Newton's 3rd Law
Newton's 1st Law
Newton's 2nd Law
21
Conduction is defined as...
thermal energy travelling in a cycle
heat transfer through touch
heat transfer through the air
42.
22
What is the atomic number?
number of protons + neutrons
Number of electrons
Number of protons
Number of neutrons
23
Atoms of the same element that have a different number of neutrons are called ____________.
isotopes
isomers
ions
indicators
24
At what temperature does water freeze?
40 F
-40 F
32 F
0 F
25
How many simple machines are there?
3
9
12
6

C Physics Review May 2023 Flashcards | StudBud