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