Position and Motion
When an object is standing still, it is _________
Stationary
The more mass an object has, the __________ it is to move it.
Harder
A ___________ is a slanted surface that connects a lower place to a higher place.
Inclined plane
What are 2 ways you can measure distance?
Inches, feet, miles, etc.
What happens when you put 2 magnet north poles together?
Where an object is located is called it's _____________
Position
_________ is a force created when two things touch.
Friction
A wedge
What are 2 ways you can measure time?
Seconds, minutes, hours, etc.
What is gravity?
An invisible force that pulls objects towards each other.
When an object speeds up, it is called ___________
Acceleration
What is it called when one force is stronger than another?
An unbalanced force
A see saw is an example of which simple machine?
A lever
___________ speed is when an object doesn't speed up or slow down.
Constant
Give a reason why gravity is important?
It keeps us on the earth, it gives us our seasons and tides, etc.
Give 2 examples of a type of motion.
Up and down, forward and backward, zig zag, around in a circle
Which ball, if pushed on the same surface with the same force would need the biggest force in order to stop?
A ping pong ball
A basketball
A bowling ball
A tennis ball
A bowling ball
A simple machine with 2 parts connected that turn together is called a ____________
wheel and axle
____________ speed is when an object speeds up and/or slows down.
Variable speed
What is the difference between mass and weight?
Mass is the amount of matter in an object. Weight is how much gravity affects an object's mass.
Give 2 examples of a force on an object
Pushing a lawn mower, pulling a wagon, twisting a lid off, etc.
Would pushing your brother in a stroller be easier on gravel or on wood floors?
Wood floors
Which simple machine is an inclined plane wrapped around a pole?
A screw
What 2 things do you need to know to calculate speed?
Distance and time.
What 2 things affect a magnet's force?
Distance and strength