Force and Motion STAAR Review

Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop?

• The car with the smaller mass will require less force to stop than the car with the larger mass

• The car with the larger mass will maintain tis velocity while traveling down a hill

• The car with the smaller mass will take longer to stop than the car with the larger mass

• The car with the larger mass will have less inertia than the car with the smaller mass

Tags

NGSS.MS-PS2-2

The masses of four vehicles and the net forces acting on them as they enter a highway are recorded in the table below. Which vehicle has the greatest acceleration as it enters the highway? (a)  

• Sedan

• Coupe

• SUV

• Truck

Tags

NGSS.MS-PS2-2

What force is required to cause a 5-kg bowling ball to accelerate at 4 m/s²? Make sure to write the unit

Tags

NGSS.MS-PS2-2

Match the following Net forces & direction of movement

• 50N up

• 100N up

  50N down

• 10N down

• 15N up

  25N down

  15N right

  15N left

• 900N right

• 700N right

  200N right

• 20N left

• 300N left

  300N right

• 0N

• 25N left

  25N left

  30N right

Answer explanation

Remember opposite direction subtract.

Same direction add.

Strongest force wins the direction.

Tags

NGSS.MS-PS2-2

Which of the following is NOT an example of acceleration?

• changing speed

• changing direction

• constant speed in a straight line

• constant speed in a circle

Which of the following is also known as Newton's 1st Law of Motion?

• The law of unbalanced forces

• The law of force and acceleration

• The law of Inertia

• The law of opposites

Select ALL the correct information. Choose Three

Is this Balanced or Unbalanced? What is the Net Force? What is the Direction of the Force?

• no direction

• left

• balanced

• unbalanced

• 0N

Answer explanation

Balanced, 0N, at rest

Tags

NGSS.MS-PS2-2

Match the following Law of motion with the correct example

• Hit a ball with 2 different forces, the ball will have greater acceleration due to larger force

• Newton's 1st law of motion

• Roll a ball across smooth/rough surfaces. The ball rolls faster on smooth because less fiction

• Newton's 3rd of motion

• Bouncing the ball on the court is the action, the floor pushing the ball back up is the reaction

• Newton's 2nd law of motion

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Identify whether the object’s forces are balanced or unbalanced. Drag them to the correct category.

Groups:

(a) BALANCED

,

(b) UNBALANCED

• 
• 
• 
• 
• 
• 

Tags

112.20.b.6.A

Organize these options into the right categories

Groups:

(a) Newton’s 1st Law

,

(b) Newton’s 2nd Law

,

(c) Newton’s 3rd Law

• An object at rest stays at rest.

• Law of Inertia

• Law of Action and Reaction

• 
• Bigger and heavier things don’t move as fast or as far as smaller, lighter things.

• 
• Law of Force and Acceleration

• The “LAZY” Law

• 
• 
• Forces act in pairs.

• 
• 

Tags

112.20.b.6.C