Can you predict the pattern of motion of the jump rope?
from side to side
swinging back and forth
circular around Izzy
just up and down
What do you predict about the pattern of motion for Izzy and Zoe's pendulums?
the long one will swing fastest
they will swing the same
the long one will swing slowest
they will not swing at all
Which of these pendulums do you predict will have the fastest motion?
all will swing the same speed
the longest one
the shortest one
the medium length one
What is resistance to motion called?
resistance
viscosity
patterns
friction
What is produced by the friction of two surfaces rubbing against one another?
heat
matter
electricity
steam
What is the purpose of the air in air hockey?
keeps players cool
reduces friction
dries players' hands
increases friction
What is the bowling alley lane coated with to reduce friction?
paint
sand
oil
wood
What part of a car increases friction?
color of paint
tires
skill of driver
amount of gas
Patterns of motion can be used to _________.
none of these
make predictions
make energy
make matter
What causes the pendulums to form neat patterns?
friction
energy
gravity
different length of strings
