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