Force and Motion

Philip is playing tug of war with Nancy. They both understand that to win the game of tug of war, one player must pull the flag over their opponent's line, but during this particular game, the flag tied to the center of the rope is not moving. What is happening to the rope in this example?

• Philip is applying more force in one direction.

• Nancy is applying more force in one direction.

• Philip and Nancy are applying equal forces in the same direction.

• Philip and Nancy are applying equal forces in opposite directions.

While on a camping trip, Shane and Katie are traveling in a boat on a river. On their trip, the river's current carries them down the river at a speed of 5 meters per second (m/s). They don't need to row because the current is carrying them in the direction they need to go.   If no other forces are acting on the boat, which of these statements describes the motion of the boat as it travels downstream?

• It speeds up. 
• It slows down. 
•  It stays the same. 
• It changes direction. 

Maria pushes with equal force on two objects. Object 1 has twice as much mass as Object 2. Which of the following statements is true? 

• Both objects will remain still. 
• Object 1 will accelerate faster than object 2. 
• Object 2 will accelerate faster than object 1. 
• Both objects will accelerate at the same rate. 

Julian rides in her mother's car sometimes and in her father's car other times. If it takes her less time to travel the same distance in her mother's car than in her father's car, which of the following is true? 

• Her father's car is traveling at a greater speed than her mother's car. 
• Her mother's car is traveling at a greater speed than her father's car. 
• Both cars are traveling at the same speed since they travel the same distance. 
• Both cars accelerate at the same rate, but her mother's car has a greater mass. 

If an object is at rest and no force acts on it, what will happen?

• The object will stay still.

• The object will slow down.

• The object will accelerate.

• The object will change position.

Darryl pushes on two different boxes. Box 1 has a greater mass than Box 2. Which of the following statements is true? 

• Equal force is needed to move the boxes. 
• Both boxes will accelerate at the same rate. 
•  Less force is required to move Box 1 than Box 2. 
• Less force is required to move Box 2 than Box 1. 

A _____ is a pull or a push.

• force
• friction
• gravity
• speed

Tags

NGSS.HS-PS2-1

One way that a force can cause the change in an object's motion is to...

• do nothing.
• eat ice cream.
• start the object moving.
• shine on the object.

Tags

NGSS.MS-PS2-2

When you type on the keys of your Chromebook you are using a

• pull
• push
• gravity
• friction

A _____ moves an object closer to you.

• push
• pull
• friction
• cat

Tags

NGSS.MS-PS2-2