What is a tool that measures the pull of gravity on an object?
newton
spring scale
unbalanced forces
triple beam balance
What is a tool used to measure the distance an object moves?
cm ruler
stop watch
spring scale
thermal energy
What do scientists do to increase the reliability of their results in an investigation?
use a ruler
conduct repeated trials in an experiment
use a stopwatch
conduct only one trial in an experiment
A student pulls a wooden block across different surfaces like tile, carpet, and glass. What force is most likely effecting the block?
newton (N)
stopwatch
friction
magnetism
Definition: the change in an object's position
friction
speed
motion
triple beam balance
Definition: a push or pull
force
motion
meterstick
distance
Definition: a force that occurs when two objects rub against each other
gravity
force
friction
thermal energy
A student observes how long different balls take to hit the floor when dropped from the top of a ladder. What tool would the student need to obtain accurate data?