What is a tool that measures the pull of gravity on an object?
triple beam balance
unbalanced forces
spring scale
newton
What is a tool used to measure the distance an object moves?
thermal energy
cm ruler
spring scale
stop watch
What do scientists do to increase the reliability of their results in an investigation?
use a ruler
use a stopwatch
conduct repeated trials in an experiment
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?
magnetism
friction
newton (N)
stopwatch
Definition: the change in an object's position
friction
triple beam balance
speed
motion
Definition: a push or pull
motion
distance
force
meterstick
Definition: a force that occurs when two objects rub against each other
thermal energy
force
friction
gravity
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?