Science Calculations

Scenario: A space shuttle is launched into orbit. Which of Newton’s Laws explains the action-reaction forces during the launch?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• None of Newton's Laws

Why does soft padding in a helmet reduce impact force? Include Newton’s 2nd Law.

• Soft padding reduces the distance between your head and the helmet, slowing the acceleration of your head, thus lowering Force according to Newton's 2nd Law

• Soft padding decreases the mass of the helmet, reducing the force according to Newton's 2nd Law.

• Soft padding increases the velocity of the impact, reducing the force according to Newton's 2nd Law.

• Soft padding changes the direction of the impact, reducing the force according to Newton's 2nd Law.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Solve: A runner travels 200 meters in 25 seconds. What is their speed?

• 8 m/s

• 8 m

• 8 mph

Which of the following best represents a distance vs. time graph for a delivery driver traveling 15 miles, stopping for a delivery, and returning?

• A straight line increasing, a flat line, then a straight line decreasing

• A straight line increasing, then a straight line decreasing

• A flat line, then a straight line increasing, then a flat line

• A straight line decreasing, a flat line, then a straight line increasing

Tags

NGSS.MS-PS3-1

What energy transformations occur in a smartphone while charging, and how does the Law of Conservation of Energy apply?

• Chemical to electrical back to chemical when the phone is unplugged...

  Energy is conserved.

• Electrical to thermal to kinetic when the phone is unplugged...

  Energy is lost.

• Potential to kinetic to sound....

  Energy is created.

• Thermal to chemical to light...

  Energy is destroyed.

Tags

NGSS.MS-PS3-5

Which method of heat transfer involves direct contact?

• Conduction

• Convection

• Radiation

• Insulation

Convert: 83°F to Celsius using the three steps discussed in class.

• 28.3°C

• 25.6°C

• 30.0°C

• 27.2°C

A car accelerates from rest to 60 km/h in 10 seconds. What is the car's acceleration?

• 6 km/h/s

• 6 m/s^2

• 1.67 m/s^2

• 1.67 km/h/s

Tags

NGSS.MS-PS2-2

Which of the following equations represents the relationship between force, mass, and acceleration?

• F = ma

• F = m/a

• F = m + a

• F = m - a

Tags

NGSS.MS-PS2-2

A scientist measures the temperature of a substance as it changes state from solid to liquid. What type of graph would best represent this data?

• A straight line increasing

• A flat line followed by a straight line increasing

• A straight line decreasing

• A flat line

Tags

NGSS.MS-PS1-4