speed, distance, acceleration and time

Noah, Arjun, and Daniel are watching a football match. They notice that the football changes its position compared to the starting point. What is this an example of?

• acceleration

• speed

• motion

• reference point

Benjamin, Aria, and Henry are observing a race car at a motorsport event. The car starts off slowly, but then begins to increase its speed gradually. This change in the car's speed is known as what?

• acceleration

• average speed

• motion

• reference point

When David's distance from Abigail and Aria is changing as they are playing a game of tag,

• David is in motion.

• David is speeding. 

• David is accelerating.

• David is moving at a high velocity.

Grace, Samuel, and Noah decided to participate in a marathon. Grace calculated her speed by dividing the distance she covered by the time it took her to complete the marathon. How did Grace calculate her speed?

• time

• velocity

• size

• motion

Tags

NGSS.MS-PS3-1

Samuel, Daniel, and Benjamin are conducting a physics experiment. Rohan and Isla are assisting them by racing each other. Rohan is running a certain distance and Isla is timing him. What formula should they use to calculate Rohan's speed?

• S = t/d

• S = d/t

• S = d x t

• S = t x d

Anika, Avery, Michael, Priya, and Aiden are participating in a city marathon. What does it mean when we say Anika has a high speed?

• Anika is covering a lot of distance

• Anika is covering a lot of distance over a period of time

• Anika is accelerating quickly

• Anika's location is changing rapidly

Tags

NGSS.MS-PS3-1

Nora, Abigail, and Noah are discussing Newton's First law during their physics class. Nora says a soccer ball rolling on a field will continue to move forward (unbalanced), and a soccer ball at rest will stay stationary (balanced) unless an external force acts on it. Abigail, on the other hand, argues that a stationary soccer ball will start moving (unbalanced), and a rolling soccer ball will come to a halt (balanced) unless an external force acts on it. According to Newton's First law, who is correct?

• Nora: Unbalanced ( a soccer ball rolling on a field will continue to move forward ) , Balanced ( a soccer ball at rest will stay stationary ) unless an external force acts on it

• Abigail: Unbalanced ( a stationary soccer ball will start moving ) , Balanced ( a rolling soccer ball will come to a halt ) unless an external force acts on it

• Neither of them

Rohan, Mason, Liam, Anika, Ava, Avery, Benjamin, Jackson, and Isla are playing a game of soccer in their school playground. If Anika kicks the ball towards the goal, she is considered to be _____.

• in motion

• at reset

• a frame of reference

• magical

During a city marathon, Arjun observed that Elijah's speed varied while he was running the 100m stretch. This change in speed over a given period of time is known as

• velocity

• motion

• speed

• acceleration

Evelyn, Daniel, and Samuel joined Abigail, Henry, and Rohan on a road trip. They noticed that the speed of their car, driven by Aiden, was fluctuating as they were driving through the hilly terrain. This is because the car was ________

• slowing down

• going faster

• neither answer is correct

• both answers are correct

Tags

NGSS.MS-PS2-2