Test 1 Honors Motion in 1D (33MC)

A car is accelerated at 4.0 m/s^2 from rest. The car will reach a speed of 28 m/s at the end of

• 7.0 sec

• 14 sec

• 24 sec

• 3.5 sec

A blinking light of constant period is situated on a lab cart. Which diagram best represents a photograph of the light as the cart moves with constant velocity?

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The graph below shows the velocity of a race car moving along a straight line as a function of time. What is the magnitude of the displacement of the car from t = 2.0 seconds to t = 4.0 seconds?

• 80 m

• 60 m

• 20 m

• 40 m

A boat initially traveling at 10 meters per second accelerates uniformly at the rate of 5.0 meters per second ^2 for 10 seconds. How far does the boat travel during this time?

• 50 m

• 350 m

• 500 m

• 250 m

As shown in the diagram above, an astronaut on the Moon is holding a baseball and a balloon. The astronaut releases both objects at the same time. What does the astronaut observe? (Note: the Moon has no atmosphere)

• The baseball and balloons fall at the same rate

• The baseball falls slower than the balloon

• The baseball and balloon remain suspended and do not fall

• The baseball falls faster than the balloon

Which is constant for a freely falling object?

• Velocity

• Displacement

• Acceleration

• Speed

What is a distance traveled by an object that moves with an average speed of 6.0 meters per second for 8.0 seconds?

• 48 m

• 0.75 m

• 1.3 m

• 14 m

Starting from rest, an object rolls freely down an incline that is 10 meters long in 2 seconds. The acceleration of the object is approximately

• 10 m/s

• 5 m/s

• 10 m/s^2

• 5 m/s^2

Oil drips at 0.4 second intervals from a car that has an oil leak. Which pattern best represents the spacing of oil drops as the car accelerates uniformly from rest?

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A skater increases her speed uniformly from 2.0 meters per second to 7.0 meters per second over a distance of 12 meters. The magnitude of her acceleration as she travels this 12 meters is

• 2.2 m/s^2

• 3.8 m/s^2

• 2.4 m/s^2

• 1.9 m/s^2