Which of the following is NOT an example of unbalanced forces?

• a turning car

• a car breaking to a stop

• a car traveling 60 mph constantly

• a car accelerating down a hill

Tags

NGSS.HS-PS2-1

What is the difference between speed and velocity?

• speed is a change in velocity

• speed is velocity with a direction

• speed is no change in velocity

• velocity is speed with a direction

Which of the following correctly describes the motion?

• an object at rest

• an object at constant speed

• an object accelerating

• an object with changing velocity

Tags

NGSS.HS-PS2-1

If the same force is applied, which car will accelerate more quickly?

• a car with a smaller mass

• a car with a bigger mass

Tags

NGSS.HS-PS2-1

What acceleration results from 25N of force being applied to a 5kg ball?

• 125 m/s²

• 0.2 m/s²

• 20 m/s²

• 5 m/s²

Tags

NGSS.HS-PS2-1

A 0.5 kg football experiences a 16 m/s² acceleration when thrown. What force was applied on the football?

• 32 N

• 8 N

• 15.5 N

• 0.04 N

Tags

NGSS.HS-PS2-1

If 2N of force accelerates a toy car 0.5 m/s², how much force is required to accelerate the toy car 1.2 m/s²

• 4.8N

• 0.8N

• 4N

• 5.2N

Tags

NGSS.HS-PS2-1

What is the x component of the vector in the diagram?

• 104N
• 60N
• -104N
• 95N

Tags

CCSS.HSN.VM.A.2

What is the y component of the vector in the diagram?

• 104N
• 60N
• -104N
• 95N

Tags

CCSS.HSN.VM.A.2

 What is the force of friction between a block of ice that weighs 950 N and the ground if μ = .12? 

• 65 N
• 226 N
• 175 N
• 114 N

Tags

NGSS.HS-PS2-1