NONCONTACT
MAGNETISM
DIRECTION
CONTACT
GRAVITY
FORCES
MOTION
WORK
PUSH
PULL
S
B
W
R
O
V
P
F
O
R
C
E
S
N
F
N
O
I
T
C
E
R
I
D
L
F
H
A
F
E
E
O
O
T
V
P
U
L
L
O
C
R
A
O
E
E
E
C
B
A
B
E
A
U
O
T
N
S
U
I
A
A
I
I
Y
O
V
V
N
C
U
R
F
K
O
T
W
D
T
A
F
X
T
Q
O
W
O
Z
E
N
I
W
I
V
O
O
A
I
T
O
G
T
Y
O
Y
W
V
C
U
A
C
X
E
R
M
X
E
C
X
J
A
W
F
Z
T
O
U
K
K
B
A
N
I
H
R
C
O
H
G
U
A
G
U
L
U
O
O
E
G
I
K
S
N
Z
E
Q
M
A
G
N
E
T
I
S
M
U
T
L
E
Z
P
C
O
N
O
I
T
O
M
P
I
T
Y
U
Z
P
J
N
F
Q
D
Z
O
G
E
C
