Definitions Flashcards
1
Q
Describe a transverse wave
A
They are perpendicular to the direction of the waves
2
Q
Describe a longitudinal wave
A
They are parallel to the direction of the waves
3
Q
What is fission
A
Fission is the splitting of and atom into a smaller nuclei
By doing this it releases energy
4
Q
What is fusion
A
Fusion is the joining of 2 smaller nuclei to form an nucleus with a larger mass
By doing this it releases energy
5
Q
Define acceleration
A
The change of speed in unit time
a= v-u/t
6
Q
Define geostationary orbit
A
Orbit the earth
7
Q
What is a vector
Give 2 examples
A
A vector has a size and direction
• displacement
• acceleration
8
Q
What is a scalar
Give 2 examples
A
Scalar has only size
•speed
•distance
9
Q
Define pressure
A
Pressure is the force per unit area
