Evan and Noah are playing with a soccer ball. Evan kicks the ball, and it rolls across the field. The ball will keep rolling unless an unbalanced force, like friction or a player, stops it.

• True

• False

Naithik and Sai are discussing how the mass of a planet affects its gravitational pull. Naithik claims that the larger the mass of a planet, the smaller its gravitational force. Is Naithik correct?

• True

• False

Evan and Sai are discussing the unit of force in their physics class. What is the unit of force?

• N

• kg

• m/s

• J

When James pushes a shopping cart at the grocery store, he is applying a _______ to it.

• force

• mass

• energy

• velocity

Noah pulls a toy car with a force of 10 N to the right, while Sophia pulls it with a force of 7 N to the left. What is the net force on the toy car?

• 17 N to the right

• 70 N to the left

• 3 N to the right

• 1.5 N to the left

Naithik and Sophia are working on a project to modify a vehicle's engine to get better gas mileage. At which step of the engineering design process would this modification most likely occur?

• Ask

• Imagine

• Plan

• Create

• Improve

Alondra and Sai are working on a school project to design a new playground. During which step of their engineering process do they brainstorm ideas?

• Ask

• Imagine

• Plan

• Create

• Improve

Sophia and Noah are working on a school project to design a new type of water bottle. At which stage of the engineering design process are they most likely testing, evaluating, and modifying their water bottle design?

• Ask

• Imagine

• Plan

• Create

• Improve

Evan and Sai are trying to balance a seesaw perfectly. What is the point in the seesaw where all of its weight is concentrated?

• apogee

• center of gravity

• balance point

• drag point

• center of pressure

Gracyn and Punit are pushing a box together. What is the sum of the forces they apply on the box?

• final force

• resultant force

• summative force

• weight

• drag