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WorksheetsUCEA 6.1 Energy
Total questions: 34
Worksheet time: 26mins
Name
Class
Date
1.
What is an object or group of objects?
a)
systematic
b)
system
c)
suspect
d)
suspicious
2.
___ is the ability to cause change.
a)
Momentum
b)
Work
c)
Power
d)
Energy
3.
What is an energy transfer?
a)
Dancing
b)
Movement of energy
c)
Movement of energy from one store to another
d)
something moving
4.
What is the unit for measuring energy?
a)
Newton
b)
Kilogram
c)
Joule
d)
Jewel
5.
What is the name for energy stored in a hot object?
a)
Potential
b)
Kinetic
c)
Chemical
d)
Thermal
6.
Energy stored in petrol in a car is transferred to energy stored in a moving car. What are the names for these two energy stores?
a)
chemical and kinetic
b)
strain and kinetic
c)
chemical and electrical
d)
electrical and kinetic
7.
When an object is moved to a higher position, what name is given to the energy that it then stores?
a)
gravitational potential energy
b)
kinetic energy
c)
gravity
d)
max potential energy
8.
Which of the following would not be a chemical energy store?
a)
radioactive material
b)
fuel
c)
batteries
d)
food
9.
What is a store of energy in an object due to chemical reactions in it?
a)
gravitational store of energy
b)
chemical store of energy
c)
gravitational potential energy
d)
chemicals
10.
What is a kinetic store of energy?
a)
something moving
b)
energy stored in a moving object
c)
elastic potential energy
d)
an stationary object
11.
What is the method of energy transfer by the movement of electrical charge through wires?
a)
Electricity
b)
Electrical
c)
Electric
d)
E-lecky
12.
What is "shifting energy from one store to another by a force?"
a)
mechanic work
b)
mechenical work
c)
mechanical work
d)
no work
13.
Energy can not be created or destroyed!
a)
True
b)
False
14.
What is the name of the law for "energy can not be created or destroyed. In a closed system there is no net change to the amount of energy in the system"
a)
conservation of energy
b)
conserving energy
c)
energy of conservation
15.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
16.
A cat is sleeping on a tree branch. What type of energy does the cat possess?
a)
kinetic energy
b)
gravitational energy
c)
elastic energy
17.
You hit the brakes on your bike. The bike slows down and the brake pads increase in temperature.
What type of energy decreased when you hit the brakes?
What type of energy decreased when you hit the brakes?
a)
kinetic energy
b)
gravitational energy
c)
elastic energy
d)
thermal energy
18.
When a pendulum swings, at which point is potential energy at its greatest?
a)
2
b)
3
c)
4
d)
5
19.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
20.
The roller coaster cart has the most gravitational potential (stored) energy at position-
a)
W
b)
X
c)
Y
d)
Z
21.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
22.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
23.
The formula for work is:
a)
s = d / t
b)
p = m x v
c)
F = m x a
d)
W = F x d
24.
Look at the calculation. How much work is done to lift a 2 N book by 2 metres?
a)
2 J
b)
200 J
c)
4 J
d)
16 J
25.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
26.
How many joules are there in 35 kilojoules?
a)
350
b)
3.5
c)
35000
d)
3500
27.
Efficiency is...
a)
The percentage of energy that is actually used to do work
b)
The stuff in the walls that keeps energy in
28.
Energy efficiency can be calculated using the formula:
a)
Efficiency = (useful output) / (input) * 100
b)
Efficiency = (useful input) / (all output) * 100
c)
No formula
29.
What is the efficiency of the machine if the input is 263 J and the useful output is 142 J?
a)
6.26%
b)
54%
c)
100%
d)
260%
30.
Where does most of the energy go in this transformation.
a)
Electrical energy
b)
Light
c)
Heat
d)
other
31.
Where does most of the energy go for this transformation.
a)
heat
b)
electrical
c)
light
d)
joules
32.
Work is a measure of the energy needed to apply a force across a _______.
a)
time
b)
distance
c)
gravity
d)
object
33.
Before a 4kg ball is pushed off a 5m ledge. How much PE does it have?
a)
19.6 J
b)
29.6 J
c)
50 J
d)
100 J
34.
What is the potential energy of a 2-kilogram potted plant that is on a 1 meter-high plant stand?
a)
1 J
b)
1.96 J
c)
19.6 J
d)
196 J
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