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Unit 3 - Energy and Work Vocab

Total questions: 28

Worksheet time: 18mins

Name
Class
Date
1.

Us

a)

Kinetic Energy

b)

Gravitational Potential Energy

c)

Elastic or Spring Potential Energy

d)

Thermal Energy

e)

Chemical Energy

2.

Q

a)

Kinetic Energy

b)

Gravitational Potential Energy

c)

Elastic or Spring Potential Energy

d)

Thermal Energy

e)

Chemical Energy

3.

K

a)

Kinetic Energy

b)

Gravitational Potential Energy

c)

Elastic or Spring Potential Energy

d)

Thermal Energy

e)

Chemical Energy

4.

Ug

a)

Kinetic Energy

b)

Gravitational Potential Energy

c)

Elastic or Spring Potential Energy

d)

Thermal Energy

e)

Chemical Energy

5.

Ug

a)

Kinetic Energy

b)

Gravitational Potential Energy

c)

Elastic or Spring Potential Energy

d)

Thermal Energy

e)

Chemical Energy

6.

The energy of a moving body.

(a)  

7.

  • K = ½ × m × v2



(a)  

8.

Energy stored when an object is raised above the ground

(a)  

9.

  • Ug = m × g × h



(a)  

10.

-------- measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.

(a)  

11.

Work = FNET × d × cos (Θ)

(a)  

12.

Work is not possible when....

a)
  • Constant net force

b)
  • The force must cause the displacement

c)

Non-Constant Force

d)

Force both causes displacement and doesn't

13.

The amount of work can be calculated by calculating the area ---- and Force vs. Displacement graph

(a)  

14.

When pulling something at an incline, is the force less?

a)

Yes, the force is less because the friction is becoming less.

b)

Yes, the total force is multiplied by a fraction of the total force

c)

No, its impossible as a force applied in any way has no different effect

15.

On a displacement v force graph, what is the area under curve represent?

a)

Work

b)

Force

c)

Displacement

d)

Velocity

e)

Friction

16.

When energy passes from one object or place to another without changing form.

a)

Energy Transfer

b)

Energy Transformation

c)

Energy Conservation

17.

The total amount of energy in an isolated system remains constant, although it may change forms (transform!).

a)

Energy Transfer

b)

Energy Transformation

c)

Energy Conservation

18.

The total amount of energy in an isolated system remains constant, although it may change forms (transform!).

a)

Energy Transfer

b)

Energy Transformation

c)

Energy Conservation

19.

When energy changes from one to another

a)

Energy Transfer

b)

Energy Transformation

c)

Energy Conservation

20.

In a close system, what goes in must come out in a energy conservation system!

a)
Energy input equals energy output in a closed system.
b)
Energy output can exceed energy input in a closed system.
c)
Energy input is always greater than energy output.
d)
Energy can be created or destroyed in a closed system.
21.

As the angle increases, the force

a)

increases

b)

decrease

c)

remains constant

22.

As the angle increases, the work

a)

increases

b)

decrease

c)

remains constant

23.

What is a closed system in physics?

a)
A closed system is only concerned with the transfer of matter, not energy.
b)
A closed system is one that cannot exchange energy or matter with its surroundings.
c)
A closed system can exchange both energy and matter with its surroundings.
d)
A closed system is one that can exchange energy but not matter with its surroundings.
24.

What is a open system in physics?

a)
An open system is one that does not interact with its environment.
b)
An open system is one that exchanges energy and matter with its surroundings.
c)
An open system only exchanges energy, not matter.
d)
An open system is isolated from its surroundings.
25.

What is a isolated system in physics?

a)
An isolated system is a system that can freely exchange matter but not energy.
b)
An isolated system is one that does not exchange matter or energy with its surroundings.
c)
An isolated system is one that only exchanges energy with its surroundings.
d)
An isolated system is one that is completely empty and has no particles.
26.

What is this equation represent?

K=12Iw2K=\frac{1}{2}Iw^2

a)
The mass of a rotating object.
b)
The potential energy of a stationary object.
c)
The kinetic energy of a rotating object.
d)
The speed of a linear motion.
27.

What is this equation?

ΔUg=mgΔy\Delta U_g=mg\Delta y

a)
Equation of motion for a projectile.
b)
Formula for kinetic energy.
c)
Change in gravitational potential energy formula.
d)
Law of conservation of energy.
28.

What is this equation is ΔUs=12kx2\Delta U_s=\frac{1}{2}kx^2

a)
Energy lost due to friction.
b)
Potential energy stored in a spring.
c)
Kinetic energy of a moving object.
d)
Work done by an external force.