Definition of speed

• S=d*t
• S=d/t
• S=d-t
• S=t+d

Definition of velocity

• V=t*Δx
• V=t^2+Δx
• V=Δx-t
• V=Δx/t

How does acceleration of Y affect acceleration of X?

• acceleration Y is double acceleration X
• acceleration Y is half acceleration X
• no effect
• Inversely related

Forces acting on a person leaning on a wall

• gravity only
• normal only
• push and gravity
• normal and gravity

What is Newton's second law?

• ∑F=m*a
• ∑F=m/a
• m*a=a*m
• F₁=g*m*a

Tags

NGSS.HS-PS2-1

Two cars crash head on. What is the force acting on car 1 if the force acting on car 2 is 50,000N?

• 500,000N
• 50,000N
• 5,000N
• 25,000N

Tags

NGSS.HS-PS2-1

Which are types of potential energy?

• chemical & gravitational
• kinetic & gravitational
• thermal & kinetic
• chemical & thermal

What is Power?

• P=x*t/m
• P=t/m
• P=t/E
• P=E/t

What is Impulse?

• J=F*t
• J=Δp
• a & b
• none of the above

How do you find Centripital Force?

• F_c=(m*r²)/v
• F_c=(r*v²)/m
• F_c=(m*v²)/r
• F_c=(r*m²)/v