Amsti Experimenting with Forces and Motion

Define force

• It is how fast something moves
• It is a push
• It is a push or a pull on an object
• It is a pull

True or false: You measure the strength of a force with a newton (N)

• True 
• False

“Ball C" is rolling across the surface, but it eventually comes to a stop. Which force is most likely responsible for this?

• gravity
• friction
• electricity
• magnetism

Tags

NGSS.MS-PS2-2

An identical object was placed onto the three different surfaces and set into motion with an identical force. The bars show how long it took the object to travel 10 meters. Based on the graph, which surface had the greatest friction?

• surface A
• Surface B
• Surface C
• Friction is the same on every surface

Tags

NGSS.MS-PS2-2

If the forces are the same in Scenario A and Scenario C, which ball would move the fastest?

• both balls would move at the same speed
• there is no way to determine which ball would move the fastest
• the ball in Scenario C
• the ball in Scenario A

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The rougher the surface, the faster an object will travel over the surface.

• True
• False

The amount of matter in an object is what?

• pressure
• weight
• mass
• neutrinos

A control in an experiment is - 

• the substance, object or group in an experiment that is not changed
• an experiment in which all variables are kept the same except one
• a push or pull
• a condition in an experiment that is changed

A variable in a science experiment is - 

• the substance, object or group in an experiment that is not changed
• an experiment in which all variables are kept the same except one
• a push or pull
• a condition in an experiment that is changed in order to determine the effect

Which experiment listed below will best determine how friction affects the speed of a rolling object?

• Roll 3 objects of various sizes across the floor.
• Roll 3 objects of equal size from various heights across the floor.
• Roll 3 objects of equal size across 3 different types of surfaces.
• Roll 3 objects of equal size from equal heights across the floor.

Tags

NGSS.MS-PS3-1