Newton's

Sometimes tectonic plates do not move easily past one another, and the plates become stuck. Forces build up, and when the plates finally move, tension is released, as shown below. The sudden movement of the plates is caused by -

• the mass of the plates
• the weight of the plates
• unbalance forces
• gravitational force

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

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?

• Sedan
• Coupe
• SUV
• Truck

Tags

NGSS.MS-PS2-2

A student lets a toy car roll four times down a ramp that is 1 m long. Each time the student covers the surface of the ramp with a different material. The student measures the time it takes the car to roll down the ramp and records the results in the table below. Which of these would be the best conclusion based on the data in the table?

• Different surfaces affect how fast a toy car accelerates.
• Different toy cars travel at different speeds.
• Gravity has little effect on the speed of toy cars on different surfaces.
• Air resistance is the greatest factor in limiting the acceleration of different toy cars.

Tags

NGSS.MS-PS2-2

According to Newton's Second Law, How do you calculate acceleration?

• Multiply mass and acceleration

• Divide force by acceleration

• Divide acceleration by mass

• Divide force by mass

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 10 N
• 0 N
• 25 N
• 1 N

Tags

NGSS.MS-PS2-2

The picture shows an aerialist walking on a tightrope and holding a balance bar. An action-reaction pair of forces exists between-

• the aerialist's feet and the rope

• the rope and the balance bar

• the two ends of the rope

• the aerialist's arms and legs

Tags

NGSS.MS-PS2-2

Four boxes are sliding with constant speed before each box experiences an unbalanced force of 8N. Which box would experience the greatest acceleration when the unbalanced force is applied.

• The box with a mass of 2kg

• The box with a mass of 4kg

• The box with a mass of 6kg

• The box with a mass of 8kg

Tags

NGSS.MS-PS2-2

Four students push carts filled with sports equipment across the gym. Each student pushes with the same amount of force. Which cart has the greatest change in speed?

• 12 tennis rackets (m = 10kg)

• 15 sports balls (m = 15kg)

• 18 exercise mats (m = 20kg)

• 28 pieces of rope (m = 25kg)

Tags

NGSS.MS-PS2-2

the force that attracts a body toward the center of the earth or toward any other physical body having mass

• gravity
• time
• distance
• mass

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5