Worksheetsatom, energy and more about science + -
Total questions: 9
Worksheet time: 45secs
Name
Class
Date
1.
what are the particles in a helium atom?
a)
2 electrons, 1 proton and neutron
b)
2 protons, 1 electron and neutron
c)
2 neutrons, 1 electron and neutron
d)
4 nucleus
2.
smallest atom
(a)
3.
how fast does electricity travel?
a)
10,000 km per second
b)
300,000 km per second
c)
100,000 km per second
d)
30,000 km per second
4.
which instrument is used to measure very high tempratures?
(a)
5.
what is highest temprature ever recorded?(on earth)
(a)
6.
can sound travel inn vacuum?
(a)
7.
What is the speed of sound called?
(a)
8.
how is the loudness of sound measured?
(a)
9.
what is the study of the way sound behaves called?
(a)
100 %
