Motion
Motion is a change in the _____ of an object.
size
speed
direction
position
position
Which of these is an example of putting force on an object?
hitting a baseball with a bat
typing on a keyboard
pushing dirt with a bulldozer
All of the above.
All of the above.
_______ is an object’s location compared to its surroundings.
Force
Motion
Postition
Speed
Postition
Which force usually pulls down?
balanced forces
gravity
opposite forces
unbalanced forces
gravity
Which is a tool that scientists can use to measure force?
spring scale
ruler
thermometer
stopwatch
spring scale
When something is in motion, it
has a strong pull.
changes position.
does not have force.
pushes with a lot of strength.
changes position.
Which can happen when force is put on an object?
The object can turn.
The object can speed up.
The object can slow down.
All of the above.
All of the above.
Which of the following is an example of force pulling an object?
turning a book's page
pressing a doorbell
typing on a keyboard
walking on the sidewalk
turning a book's page
___________ is an example of an unbalanced force
A book sitting on a desk
A hand holding an apple
A ball falling downward
A person sitting on a sofa
A ball falling downward
What happens to an object that has unbalanced forces acting on it?
The object will get bigger.
The motion of the object will change.
The object will stay still.
The object will break apart.
The motion of the object will change.
Which of the following is used to describe motion?
force
pull
speed
strength
speed
What is force?
a push or pull on an object
the speed an object changed position
an object's location compared to its surroundings
a push or pull on an object
_______________ is which way an object moves.
Motion
Speed
Direction
Position
Direction
Balanced forces
cause a change in motion.
are forces that pull down.
do not cause a change in motion.
are forces pushing in the same direction.
do not cause a change in motion.
What is friction?
How fast something moves
The direction is which an object moves
How something is put into motion
The force that holds back or stops the movement of an object
The force that holds back or stops the movement of an object
What is motion?
An object's location
A change in the force placed on an object
A change in the position of an object
The speed of an object
A change in the position of an object
Forces have
size and shape.
size and direction.
strength and direction.
strength and position.
strength and direction.
A book is resting on a table. What kind of forces must be acting on the book?
The book must not have any forces acting on it.
The forces acting on the book must be balanced.
The forces acting on the book
The book must have an unbalanced force acting on it. must be very weak.
The forces acting on the book must be balanced.
In tug-of-war, if one team is pulling with more strength than another, there are
added forces.
balanced forces.
unbalanced forces.
no forces.
unbalanced forces.
What happens when two forces push or pull on an object in the same direction?
They cancel each other out completely.
They become a stronger force in that direction.
They become a weaker force in that direction.
They make the object move in the opposite direction.
They become a stronger force in that direction.
The force that pulls down is called __________.
dynamometer
gravity
balance
unbalanced
gravity
A force can ________ an object.
speed up
slow down
turn
all of the above
all of the above
Why is rollerskating on the smooth street easier than rollerskating on thick bumpy grass.
Because grass changes position
Because there is more friction between the grass and the rollerskates
Because there is more friction between the street and the rollerskates
Because the street changes position
Because there is more friction between the grass and the rollerskates
When two or more forces push on an object, they create
gravity.
a stronger force.
a balanced force.
no change in force.
a stronger force.