A force is...
a push or a pull
True or false: magnetism is a force.
True
A push or pull that makes something move
What is force?
A sled goes down a hill because of
gravity
Describe the motion of a pendulum.
swinging back and forth
This force causes you to stay seated while in your chair.
What is gravity?
When magnets push apart, we say they _______.
repel
Would more force be needed to move a car or a bicycle?
A car
Describe the motion of a wheel.
rotating/spinning
Describe the motions of a twirly bird
rotating and falling to the ground
When forces are equal, we say they are ________.
balanced
Magnets attract this metal
What is iron?
What force pulls a wheel and axle down a slope?
Gravity
Describe a wheel and axle that will turn when it rolls.
One large and one small wheel
Describe a wheel and axle that will wobble or zigzag as it rolls.
Wheels in the center of the axle
When an object moves, it means the forces around it are ____.
unbalanced
Name an object that is attracted to a magnet.
paper clip
your stool
scissors
It creates the force that moves a kite.
What is wind?
What forces will cause a swing to eventually stop swinging?
air resistance, gravity, friction
Which pendulum will swing faster, long or short?
short
Describe the force used when you kick a ball.
A kick is a forward push with your foot.
How does using more than one magnet affect the strength of a magnetic field?
The magnetic field becomes bigger and can attract objects from a farther distance.
Friction
You can ride your bike faster on the sidewalk than the grass because there is less ___________ on the sidewalk
friction
What force causes a twirly bird to spin as it falls down?
air resistance