2019 Force and Motion/Chem Review

How does the motion of the roller coaster change as it travels from point W to X? 

• The speed will decrease because balanced forces were acting on the roller coaster.
• The speed will decrease because unbalanced forces were acting on the roller coaster. 
• The speed will increase because balanced forces were acting on the roller coaster.
• The speed will increase because unbalanced forces were acting on the roller coaster. 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

How many atoms of Phosphorus are present in the compound Mg₃(PO₄)₂ ?

• 3
• 4
• 2
• 8

Which 3 elements belong in the same group? 

• H, He, Li
• F, Cl, At
• Li, Be, F
• Ne, Cl, Se

How many valence electrons does this atom have? 

• 3
• 7
• 17
• 35

Which of these have similar chemical properties? 

• Atom 1 and Atom 2
• Atom 2 and Atom 3
• Atom 3 and Atom 4
• Atom 1 and Atom 4

The graph represents

• No motion
• Constant velocity
• Acceleration
• Deceleration

The graph represents

• no motion
• Constant velocity
• Acceleration
• negative acceleration

Tags

NGSS.MS-PS3-1

The graph respresents

• No motion
• Constant Velocity
• Acceleration
• Deceleration

Tags

NGSS.MS-PS3-1

The graph below represents

• Speed
• Velocity
• Acceleration
• Deceleration

The graph represents

• Acceleration
• No motion
• Deceleration
• Constant Velocity

Tags

NGSS.MS-PS3-1