Pushin' P
What is a force? (scientific definition)
a push or a pull
What do we call change in an objects position over time?
Motion
What information is shown on the y-axis of a distance time graph?
Energy of motion is called...
kinetic energy
Which simple machine is made of an inclined plane wrapped around a cylinder?
A screw
What type of force measures 0N?
Balanced Force
Which object could be used a reference point?
A tree on the side of the road
A bicyclist riding on the sidewalk
A truck driving on the highway
A horizontal line on a distance time graph shows...
that an object is stopped
Energy of position is called...
kinetic energy
A staircase is an example of an...
inclined plane
If Jim pushes a box to the right with a force of 12N and Sue pushes the box in the same direction with a force of 8N, what is the net force?
20N to the right
Which law explains that objects with more mass require more force to move?
Newton's 2nd Law
If an object travels at a speed of 20 m/s for 10 seconds, how far does it travel?
200 meters
Where does a rollercoaster have the most potential energy?
At the top of the first hill
At the bottom of the first hill
At the top of the first hill
A knife is an example of a ...
wedge
How does friction affect an object's motion?
Friction slows it down
Which law is also known as the Law of Inertia?
Newton's 1st Law
How long would it take an object to travel 10 km at a rate of 2 km/h?
5 hours
How does energy change as a rollercoaster goes down the first hill?
From potential to kinetic
How can you increase the advantage of an inclined plane?
Make it longer
If Jim and Sue push on a box with a combined force of 40N and the box doesn't move, how much force is the box pushing back on Jim and Sue?
40N (20N each)
Which law helps us understand why cars have seatbelts?
Newton's 1st Law
If an object travels 100 miles in 5 hours, what is its speed?
20 mph
What energy transformation occurs as a cell phone charges?
Electrical to chemical
A pair of scissors is composed of which two simple machines?