Exit challenge /ARE YOU READY? (S8P3.c)

Grace, Nora, and Evelyn are helping to move boxes in their school. They notice that the force required to move the boxes is directly proportional to their mass. Which box requires the least amount of force to move because it has the least amount of Newtons?

• Box W

• Box X

• Box Y

• Box Z

Maya and Ethan are studying physics. They learned that the two factors that influence the acceleration of Samuel's skateboard are ______ and _______.

Tags

NGSS.MS-PS2-2

Which graph correctly represents the relationship between force and mass on objects when the acceleration is constant?

• Graph A

• Graph B

Lily and Priya are conducting an experiment with a shopping cart at a supermarket. They are adding more items (mass) to the cart. How can Noah make the cart move faster?

• D. by decreasing the size of the cart

• A. by pushing the cart with less force

• B. by pushing the cart with more force

• C. by increasing the size of the cart

Hannah left her bicycle outside while it was raining and it filled the basket with water. When Hannah tried to move the bicycle that afternoon, she failed to budge it. Why did Hannah's bicycle become hard to move?

• 1. The rainwater increased the force of gravity pushing on the bicycle, increasing the force it needed to move.

• 1. The rainwater decreased the force of friction pulling on the bicycle, decreasing the force it needed to move.

• 1. The rainwater decreased the mass of the bicycle, decreasing the amount of force it needed to move.

• 1. The rainwater increased the mass of the bicycle, increasing the amount of force it needed to move.

Anika, Benjamin, and Liam are conducting a science experiment. They launch a model rocket into the sky where there is very little air resistance. According to Newton's law of inertia, the rocket will most likely continue to

• 1. remain at a constant speed.

• 1. eventually slow to a stop.

• 1. increase in speed and then slow to a stop.

A physics teacher is demonstrating the concept of acceleration with different weights. He states that the weight of an object influences its acceleration when the force applied is unchanged. The teacher uses a chart to illustrate the results of the experiment. Which statement is true?

• As the weight of an object increases, its acceleration decreases because it requires a greater force to move.

• As the weight of an object increases, its acceleration increases because it requires a smaller force to move.

7. Daniel, Avery, and Arjun are part of a school project where they need to build a boat for a race. The boat should be able to speed up and slow down quickly. They have a list of materials they can use for the construction. Which material should they choose to ensure their boat can speed up and slow down quickly?

• Copper

• Steel

• Lead

• Aluminum

Mason is trying to push a car, while Noah is pushing a bicycle. Mason's car has more mass, so it requires ______ force to move it compared to Noah's bicycle.

Arjun sets up an experiment to determine the effect of force on different masses in a real-world scenario. First, he pushes a 100-gram toy truck and makes it hit a stationary 50-gram toy car. He measures the distance the toy car moved. Next, he pushes the 100-gram toy truck with the same force and makes it hit a stationary 100-gram toy car. He measures the distance the second toy car moved. Which toy car will accelerate more?

• The 100 gram toy car

• The 50 gram toy car