What type of chemical bond is the picture illustrating?

• Ionic Bond
• Covalent Bond

Tags

NGSS.HS-PS1-1

What type of chemical bond is the picture illustrating?

• Ionic Bond
• Covalent Bond

Tags

NGSS.HS-PS1-1

Anions are _______ that form ____________ ions and __________ electrons.

• nonmetals, positive, lose
• nonmetals, negative, gain
• metals, positive, gain
• metals, positive, lose

What does the following ion mean 
                      S^-2

• sulfur gains 2 electrons
• sulfur loses 2 electrons
• sulfur gains 2 protons
• sulfur loses 2 protons

Tags

NGSS.HS-PS1-1

This illustration best represents which of Newton's Laws?

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Law of Universal Gravitation

Tags

NGSS.HS-PS2-1

A pair of scissors could be classified as which two simple machines?

• inclined plane and wedge
• pulley and screw
• wedge and screw
• lever and wedge

Tags

NGSS.MS-PS2-1

Henry rode his bike west at a speed of 5 miles per hour.

• Speed
• Velocity

A 25 kg bike accelerates at 5 m/s².  what was the force?

Force = MA

• 200 kg/sec
• 2 Newtons
• 5 Newton
• 125 Newtons

Tags

NGSS.HS-PS2-1

Rocket (m=50 kg) slides down a 10 m slope travelling at 4 m/s near the bottom. What is his kinetic energy at the bottom of the slope?
KE = 1/2mv²

• 400 J
• 2000 J
• 1000 J
• 100 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

You apply a force of 22 N to a dresser and move it  4 m. How much work did you do on the dresser?

Work = Force x Distance

• 54 J
• 88 J
• 21 J
• 27 J

Tags

NGSS.MS-PS3-4