Motion Graphs and Newton's Laws

Look at the graph.  Which is the best description of this object's motion? 

• A person left home, ran up a hill, down a hill, then up another hill. 
• A person walked away from home, turned back towards home, then turned away from home. 
• A person left home, walked for a few minutes, then turned around and went back home. 
• A person ran slowly, sped up, then slowed back down. 

Which of the following statements is true, based on the graph? 

• The object moved faster from A to B than from B to C. 
• The object was stopped from D to E.
• The object moved faster from B to C than from A to B. 
• The object never stopped moving. 

Tags

NGSS.MS-PS3-1

Which of the following can be concluded from the graph? 

• The object moved at a constant speed.  
• The object returned to the starting point twice. 
• The object stopped moving twice. 
• The object traveled a total of 8 miles. 

From 1.5s to 2.0s, what is the object's speed?

• 4 miles/hour

• 0 meters/second

• 4 meters/second

• 0 miles/hour

Tags

NGSS.MS-PS3-1

From 3.5s to 5.5s, in which direction was the object moving? 

• away from the starting point
• toward the starting point
• the object is not moving
• there is no way to tell

Tags

NGSS.MS-PS3-1

What will happen if you're in a car, and the driver slams on the brake?

• You will stop moving.
• You will continue moving forward.
• You will gradually slow down. 
• You will speed up.  

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

According to Newton's first law, an object in motion will stay in motion unless:

• An opposing force acts on it. 
• It's in outer space. 
• It stops.
• It remains at rest. 

What causes a ball rolling across a rug to slow to a stop?

• The rug doesn't have enough force to hold the ball. 
• Friction resists the ball's forward motion.
• The rug doesn't have enough momentum to keep the ball rolling.
• The ball isn't rolling fast enough. 

Tags

NGSS.MS-PS3-5

If an unbalanced force acts on an object, what will happen?

• It will not move at all. 
• It will accelerate in the same direction as the force. 
• It will accelerate in the direction opposite the force. 
• It will accelerate at an angle of 90 degrees to the force. 

Tags

NGSS.HS-PS2-1

What is net force? 

• A force associated with the internet. 
• The combined forces acting on a particular object. 
• The same thing as inertia.
• The same thing is gravity. 

Tags

NGSS.HS-PS2-1