# Getting Ready for Physics Class

I am having trouble with the get_force function in steps 5-6. Every time I try to test it I get this error:

``````Traceback (most recent call last):
File "script.py", line 24, in <module>
train_force = get_force(train_mass, train_acceleration)
File "script.py", line 22, in get_force
return mass * acceleration
NameError: name 'acceleration' is not defined
``````

This is my code so far, what am I doing wrong?

``````# Use the Force
train_mass = 22680
train_acceleration = 10
train_distance = 100

bomb_mass = 1

# Turn up the Temperature

def f_to_c(f_temp):
return (f_temp - 32) * 5/9

f100_in_celsius = f_to_c(100)

def c_to_f(c_temp):
return (c_temp * 9/5) + 32

c0_in_fahrenheit = c_to_f(0)
print(c0_in_fahrenheit)

def get_force(mass, accelaration):
return mass * acceleration

train_force = get_force(train_mass, train_acceleration)
print(train_force)
``````

Spelling error is cause of exception.

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Thank you. Spelling is going to be the death of me.

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