Match the Terms with Their Definitions

Three chairs were rolling across a flat office floor. The blue and red chairs are the same mass, and they have more mass than the yellow chair. Each chair was hit by another chair, but not from the same direction. Use the information in the diagram to answer. Which chair(s) experienced the strongest force when hit? How do you know?

• The blue and red chairs experienced the strongest force because they are both more massive than the yellow chair and they changed speed by the same amount.

• The red chair experienced the strongest force because it is as massive as the blue chair and has the highest ending speed.

• All three chairs experienced the same force because they changed speed by the same amount.

• The blue chair experienced the strongest force because it takes more force to slow an object than it takes to make it go faster.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Hockey is a sport in which players use hockey sticks to push a puck across smooth ice. At practice one day, three different-colored hockey pucks were sliding on the ice. The green hockey puck has less mass than the black and purple hockey pucks, which have the same mass. A player hit each hockey puck with a stick, but not from the same direction. Use the information in the diagram to answer. Which puck(s) experienced the strongest force when hit? How do you know?

• All three hockey pucks experienced the same force because they changed speed by the same amount.

• The black hockey puck; it is more massive and it has the fastest ending speed.

• The purple hockey puck; it takes a stronger force to slow down a more massive object than to speed it up.

• The black and purple hockey pucks; they have more mass than the green puck, but changed speed by the same amount.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which soccer ball(s) experienced the strongest force? How do you know?

• All three soccer balls experienced the same force because they changed speed by the same amount.

• The orange soccer ball; it has more mass and the fastest ending speed.

• The blue soccer ball; it takes a stronger force to slow down a more massive object than to speed it up.

• The blue and orange soccer balls; they have more mass than the black soccer ball, but changed speed by the same amount.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Mateo and Jackie were on a playground rolling some different-sized balls to get them to crash. They used a tennis ball (the same mass) in both crashes. They tried two soccer balls—a pink one (more mass) for Crash 1 and a blue one (less mass) for Crash 2. Mateo and Jackie want to know what happened to the tennis ball. Use information from the diagram to answer. In which crash did the tennis ball experience a stronger force? How do you know?

• Crash 1; the force on the soccer ball was stronger in this crash, so the force on the tennis ball was also stronger.

• There was no force on the tennis ball. In each crash only the soccer ball experienced a force.

• It was the same in both crashes. The soccer ball changed speed by the same amount in each crash, so the force on the tennis ball was the same both times.

• The diagram doesn’t tell you anything about the force on the tennis ball. It only gives information about the force on the soccer balls.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A __________ is required to change the velocity of an object.

• force

• mass

• energy

• temperature

Tags

NGSS.MS-PS2-2

A change in an object's velocity depends on the __________ of the force exerted on that object.

• magnitude

• temperature

• shape

• direction

Tags

NGSS.MS-PS2-2

A stronger force is a greater change in _______________.

• velocity

• temperature

• color

• shape

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When two objects collide, a ____________ is exerted on each object. The two forces are exerted in opposite directions, but are the same strength.

• force

• velocity

• momentum

• energy

Tags

NGSS.MS-PS2-1

Understanding a ____________ and ____________ relationship can help you infer what led to a particular result.

• cause and effect

• action and reaction

• problem and solution

• input and output

Tags

NGSS.MS-LS2-4

If the force exerted on each object in a collision is the same strength, if the objects have different masses, their change in velocity will be the same.

• True

• False

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2