NEW
Font size
S
M
L
XL
WorksheetsChapter 4 8th Grade Science Energy Putman
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
When you ride a playground swing, your potential energy is greatest at the highest point.
a)
true
b)
false
2.
The kinetic energy of an object increases as its ____ increases.
a)
gravitational energy
b)
potential energy
c)
specific heat
d)
velocity
3.
Increasing the speed of an object ____ its potential energy.
a)
does not affect
b)
increases
c)
decreases
d)
changes
4.
The SI unit for energy is the ____.
a)
kilogram
b)
joule
c)
meter per second
d)
calorie
5.
You can calculate kinetic energy by using the equation ____.
a)
KE (J) = 9.8m/s2 x 1/2m(kg)
b)
KE (J) = m(kg) x 9.8 m/s2 ´ h (m)
c)
KE (J) = 1/2 m (kg) x v2(m2/s2)
d)
KE (J) = w (m) x h (m)
6.
You can calculate gravitational potential energy by using the equation ____.
a)
GPE (J) = 1/2h (m) x w(m)
b)
GPE (J) = m (kg) x 9.8 m/s2 x h(m)
c)
GPE (J) = 1/2m (kg) x 1/2h(m)
d)
GPE (J) = h (m) x 9.8 m/s2
7.
Which of the following devices does not make use of electrical energy?
a)
upright piano
b)
toaster
c)
radio
d)
digital camera
8.
A bus engine transfers chemical potential energy into ____ so that the bus moves.
a)
gravitational potential energy
b)
electrical energy
c)
thermal energy
d)
kinetic energy
9.
In a nuclear fusion reaction, mass is transformed into ____.
a)
light
b)
nuclei
c)
energy
d)
matter
10.
According to the law of conservation of energy, the total amount of energy in the universe ____.
a)
remains constant
b)
increases
c)
changes constantly
d)
decreases
Reset
