UIL Physics quiz

A man drops from a hovering helicopter. A few seconds later a second man drops. If you ignore air resistance (they are both in free fall) what will happen to the distance between them as they fall?

• Stays the same

• Decreases

• Increases

• Depends on mass

Tags

NGSS.HS-PS2-4

 The diagram shows part of a current-carrying circuit. The ammeter has negligible internal resistance.
What is the reading on the ammeter? 

• 0.7 A
• 1.3 A
• 1.5 A
• 1.7 A

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

Tags

NGSS.HS-PS2-1

At which point is kinetic energy greatest?

• W
• X
• Y
• Z

Tags

NGSS.HS-PS3-2

Three resistors with values of 4.0 Ω, 6.0 Ω and 10.0 Ω are connected in parallel. What is their equivalent resistance?

• 20.0 Ω
• 7.3 Ω
• 6.0 Ω
• 1.9 Ω

F_G = Gm₁m₂/r²

Two objects gravitationally attract each other. If the distance between them is halved then the gravitational force between them

• quadruples

• is cut in half

• doubles

• is cut in one-fourth

Tags

NGSS.HS-PS2-4

A 160 kg moose going -2.5 m/s collides with another moose of mass 150 kg going + 3.25 m/s . What is the momentum of the system?

p_s = m₁v₁ + m₂v₂

• 87.5 kgm/s

• 285 kgm/s

• -95 kgm/s

• -86.5 kgm/s

Tags

NGSS.HS-PS2-2

A large truck is moving on a flat horizontal road negotiates a curve. The radius is 38 m ad the coefficient of static friction between the tire and dry pavement is .493. What is the maximum speed the truck can take the curve without slipping? Answers are in m/s

• 13.5

• 17.8

• 19.2

• 27.5

Which of the following represents refraction?

• A
• B
• C
• D

Tags

NGSS.HS-PS4-1

A crossbow is aimed horizontally at the top edge of a target that is 1.6 m in diameter. How far away should the target be placed so that the arrow strikes the target directly in the center? The initial horizontal velocity of the arrow is 30 m/s

• 12.1 m

• 4.9 m

• 8.57 m

• 17.1 m