Speed changes from 25 mph to 35 mph • zero acceleration • negative acceleration

Question

Speed changes from 25 mph to 35 mph

• zero acceleration
• negative acceleration
• positive acceleration

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Aim the Mythbuster’s penny gun straight up. The penny is launched at a speed of 29.1 m/s (64 mph). How much time does the penny spend in the air? Based on the equation sheet I gave you, which equation should you use? 1112131415

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Measured in meters per second

• distance
• speed
• acceleration

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A bullet is fired into a 5.0 cm wooden block. It enters with a speed of 200 m/s and comes out of the block with a speed of 100 m/s. What is the acceleration of the bullet while inside the block? In this problem, what should be converted?

• 100 m/s^2 to km/h^2
• 5.0 cm to m
• 5.0 s to h
• 100 m/s to km/h
• 5.0 m to km

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Fire a bullet upwards, as it comes back down its acceleration is

• -9.8 m/s^2.
• +9.8 m/s^2.
• zero.

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To save a graph as a PIC to be printed later using Graph-Link, you press 2nd, __ , STO, StorPic, 1.

• STATS
• PRGM
• MODE
• APPS
• VARS

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How fast are you going?

• displacement
• acceleration
• speed
• velocity
• distance

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You are driving in a car going 40 mph. There is a car ahead of you and it is getting further away. The car ahead of you is going

• more than 40 mph.
• less than 40 mph.

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Fire a bullet upward, as it rises its acceleration is

• +9.8 m/s^2.
• -9.8 m/s^2.
• zero.

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You have just finished plotting data on a TI-graphing calculator and also determined the regresion equation. Now you want to plot this equation on the graph. You do this pressing Y=, VARS, __, EQ, and RegEQ.

• Picture
• Zoom
• Window
• GDB
• Statistics

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A plane accelerated from a speed of 2.0 m/s at the rate of 3.0 m/s2 over a distance of 530 m. What is its velocity after traveling this distance? Based on the equation sheet I gave you, which one should you use? 678910

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You are driving in a car going 35 mph. You approach an intersection that is governed by stop signs for all traffic. You must

• accelerate.
• decelerate.

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What is the final velocity of an object constantly accelerating from rest at 14.5 m/s^2 over 35 m. In this problem, d =

• 0
• final velocity.
• 35 m
• 14.5 m/s^2.

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You have just finished plotting data on a TI-graphing calculator. To calculate the regression equation, you press __, CALC, and then choose the appropriate regression equation.

• Y=
• VARS
• MODE
• STAT
• PRGM

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A jet plane must achieve a velocity of 71 m/s for takeoff. From rest and with a 1,000 m long runway, what must the acceleration be? Based on the equation sheet I gave you, which one should you use? 678910

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In a vacuum, all bodies fall with the same constant

• change in velocity.
• change in acceleration.
• change in position.

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An object in motion must undergo a change in

• acceleration.
• position.
• velocity.
• speed.

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A new car manufacturer advertises that their car can go "from zero to sixty in 8 s". This is a description of

• average acceleration.
• instantaneous speed.
• instantaneous acceleration.
• average speed.

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Fire a bullet upward, at its highest point its acceleration is

• zero.
• -9.8 m/s^2.
• +9.8 m/s^2.

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You have thrown a football upward. The football is

• accelerating.
• decelerating.
• moving at a constant speed.

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A car starting from rest accelerates at 6.1 m/s2 for 7.0 s. How far did the car go? Based on the equation sheet I gave you, which equation should you use? 45678

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When you look at the speedometer in a moving car, you can see the car's

• instantaneous speed.
• average speed.
• instantaneous acceleration.
• average acceleration.

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Acceleration is

• displacement divided by time.
• the product of velocity and time.
• the rate of change of velocity.
• the rate of change in displacement.

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How long does it take a car accelerating constantly at 4 m/s^2 from rest to travel 200 m? In this problem, you are solving for

• initial velocity.
• time.
• distance.
• final velocity.
• acceleration.

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A car accelerates from rest in the positive direction. Which of the following is known?

• Its initial acceleration is negative.
• Its initial position is zero.
• Its initial velocity is zero.
• Its final velocity is zero.

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A penny is dropped from the 82nd Floor Observatory of the Empire State Building. The penny will fall from a height of 320 meters. How long will it take to fall before it hits the ground below? Based on the equation sheet I gave you, which equation should you use? 1112131415

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How far does a train travel if it accelerates from 11 m/s to 33 m/s in 2.0 s? Based on the equation sheet I gave you, which equation should you use? 45678

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You are driving in a car going 40 mph. There is a car ahead of you and it is getting closer. The car ahead of you is going

• more than 40 mph.
• less than 40 mph.

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Travel a large distance in a small amount of time

• high speed
• low speed

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Small increase in speed over a long period of time

• high acceleration
• low acceleration

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How far did you travel?

• velocity
• distance
• speed
• displacement
• acceleration

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You are driving in a car going 40 mph. You want to pass a car that is in front of you. You must

• accelerate.
• decelerate.

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Stopping through a large distance, this is a

• large deceleration.
• large acceleration.
• small acceleration.
• small deceleration.

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Travel at a constant speed in a straight line

• negative acceleration
• positive acceleration
• zero acceleration

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Rate of change in velocity

• velocity
• displacement
• distance
• acceleration
• speed

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Slamming on the brakes

• negative acceleration
• positive acceleration
• zero acceleration

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Fire a bullet upward, at its highest point its velocity is

• half of what it could be.
• the largest.
• zero.

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Match the unit with the quantity. Must match ALL correctly to receive credit.

distance m
velocity m/s
acceleration m/s^2
time s
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The value of g on Earth is 9.8 m/s/s. The g stands for

• giga.
• acceleration due to gravity.
• Galileio.
• gravity.
• the force of gravity.

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In a vacuum, falling objects

• move at a constant speed.
• accelerate.
• decelerate.

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A car goes from zero to 60 mph in a very short amount of time. This describes a

• high rate of acceleration.
• low rate of acceleration.

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A football is dropped from the top balcony of a four story apartment building.

• The football's final acceleration is zero.
• The football's final velocity is zero.
• The football's initial acceleration is zero.
• The football's initial velocity is zero.

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An airplane lands on a runway with a velocity of 150 m/s. How far will it travel until it stops if its rate of deceleration is -3 m/s^2? In this problem, the unit for the answer is

• meters.
• meter per second squared.
• meters per second.
• seconds.

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Speed is

• all of these
• a measure of how fast something is moving.
• the distance covered per unit of time.
• always measured in terms of a unit for distance divided by a unit of time.

Explanation / Answer

positive

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