STAAR Review 1

When a space shuttle was launched, the astronauts onboard experienced an acceleration of 29 m/s. If one of the astronauts has a mass of 20 kg, what net force in Newtons did the astronaut experience? Force = mass x acceleration 

• 5800
• 580
• 58
• 5.8

Tags

NGSS.MS-PS2-2

A student uses a magnet to move a 10.0 g metal ball. The magnet exerts a force of 5N, which causes the ball to begin to move. What is the acceleration of the ball when it begins to move? Force = mass x acceleration.

• 0.5 m/s/s
• 500 m/s/s
• 50 m/s/s
• 0.005 m/s/s

Tags

NGSS.MS-PS2-2

Which of the following best describes the velocity of an object?

• 150 m/s
• 150 m/s east
• 150 m east
• 30 m/s/s

Which of the following best describes the acceleration of an object

• A car maintains a constant speed
• A car is sitting still
• A car turns the corner

Tags

NGSS.MS-PS2-2

What is the difference between the velocity and the speed of an object?

• Velocity is the change in distance over time, while speed is the change in velocity over time.
• Velocity has a direction associated with it, while speed has no specific direction.
• Velocity has no direction associated with it, while speed has a specific direction. 
• Velocity is the change in speed over time, while speed is the change in distance over time.

Which way will the box in the picture accelerate? (Click on the question to see the picture more clearly!)

• Left
• Right
• Stay Stil
• Up and Down

Which of Newton's Three Laws?
A person is pushed forward into their seatbelt when a car stops. 

• Newton's First Law
• Newton's Second Law
• Newton's Third Law

Which of the particles in the chart is a neutron?

• Particle A

• Particle B

• Particle C

• Particle A and B

Tags

NGSS.MS-PS1-1

Which statement is correct about protons and valence electrons?

• The number of valence electrons determines the identity of the element, while the number of protons determines its reactivity.

• The number of valence electrons plus the number of protons is equal to the atomic mass of an element.

• The number of protons minus the number of valence electrons is equal to the number of neutrons

• The number of protons determines the identity of an element, while the number of valence electrons determines its reactivity.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which list of characteristics best describe the properties of neon, argon, and krypton?

• Conducts heat and electricity, shiny, and solid

• Brittle metalloids, reactive with oxygen, and melt at low temperatures

• Gaseous at room temperature and chemically stable

• Magnetic, highly reactive, and flammable

Tags

NGSS.MS-PS1-1