1. Use a PENCIL to mark the spot the car
stopped on the floor after each roll. You
can also mark “WW” for “without
washer” and “#1” for “1 washer” with a
sticky note to help you keep track of
which mark is for which roll.
2. Measure with measuring tape.
3. Write measurement on recording sheet.
Do you think it’s important
to switch cars with another
team and conduct the
experiment again? Why or
why not?
Distance Car #1 Traveled Distance Car #2
in cm
Traveled in cm
Without washers
1 washer
2 washers
3 washers
Measurements
in cm
Group
1
Group
2
Group
3
Group
4
Group
5
Group
6
Group
7
Group
8
Without
washers
1 washer
2 washers
3 washers
Add the data from your groups’ first roll to the class chart at the front of the
room. We’ll discuss this data and see what it tells us!
How is this like
our experiment?
Think about it!
The greater the mass of an object, the more force required to
accelerate it.
Small forces produce small accelerations. Large forces produce large
accelerations.
But like our experiment today, if an object has more mass, it won’t
accelerate as much with the same amount of force applied to it. (By
the way - the force was applied when you let the car go down the
ramp – what force WAS applied to the car?)
Describe/explain Newton’s
Second Law of Motion in your
science notebook.