What is tool that measures the pull of gravity on an object?
spring scale
triple beam balance
newton (N)
unbalanced forces
Which tool is used to measure the distance an object moves?
spring scale
ruler
stopwatch
magnet
What do scientists do to increase the reliability of their results in an investigation?
Ask untestable questions.
Do the investigation only once.
Use multiple independent variables in an investigation.
Conduct repeated investigations.
A student pulls a wooden block across different surfaces like tile, carpet, and glass. What force is most likely affecting the block?
thermal conductivity
friction
magnetism
newton (N)
What do you call the change in an objects position?
solubility
motion
friction
density
Force ________________ on an object.
do not affect anything
leans
pushes and/ or pulls
magnetizes
A force that occurs when two objects rub against each other is called _________.
motion
gravity
friction
magnetism
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?
thermometer
ruler
stopwatch
triple beam balance
A force exerted by a magnetic field is called ______________.
magnetism
friction
motion
gravity
A natural pull between two objects is called ______________.
motion
friction
magnetism
gravity
An object's position will remain the same when forces are balanced.
True
False
If a wagon is pushed across a road, what force caused its motion to stop?