Acceleration Quiz
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Chapter 5: A Mathematical Model of Motion Take home quiz 1.
What value is calculated by dividing rise by run? a. the slope of a straight line b. acceleration of a moving object exhibiting uniform motion c. angular velocity d. length of a straight line
2.
Which of the following equations can be used to find the position of an object moving at constant velocity? a. d = d0 - vt b. Δd = d1 - d0 c. tan ϑ = Ry/Rx d. d = d0 + vt
3.
You drive a car for 2.0 h at 60 km/h, then for another 3.0 h at 85 km/h. What is your average velocity? a. 73 km/h b. 75 km/h c. 75 km/h2 d. - 73 km/h
4.
What is the minimum length runway needed to accommodate airplanes that can accelerate uniformly at 2.7 m/s2 and must reach a ground velocity of 64 m/s before they can take off? a. 1.5 × 102 m b. 1.5 × 103 m c. 7.7 × 102 m d. 7.7 × 103 m
5.
You and a friend leave school at the same time. You drive at a constant 55 km/h and your friend drives 70 km/h. How long does it take each car to reach a mall that is 25 km from the school? a. you: 1 hour 40 minutes, your friend 36 minutes b. you: 2.2 hours, your friend: 2.8 hours c. you: 22 minutes, your friend: 27 minutes d. you: 27 minutes, your friend: 22 minutes
6.
__________ means that equal displacements occur during successive equal time intervals.
a. Uniform acceleration b. Uniform motion c. Average speed d. Average acceleration 7.
You and a friend each walk 8.0 km. You walk at 6.4 km/h; your friend walks 8.1 km/h. How long will your friend wait for you at the end of the walk? a. 30 minutes b. 1.7 h c. 0.5 h d. 15 minutes
8.
A tennis ball is dropped from 1.5 m above the ground, touches the ground for 0.008 s and rebounds to a height of 0.75 m. What is the ball's velocity when it hits the ground? a. -5.4 m/s b. -3.8 m/s c. 3.8 m/s2 d. -5.4 m/s2
9.
Find the uniform acceleration that causes a car's velocity to change from 27 m/s to 45 m/s in a 6.0s period. a. 3.0 m/s b. 18.0 m/s2 c. 3.0 m/s2 d. 18.0 m/s
10. How far does a car travel in 30 s while its velocity is changing from 50 km/h to 80 km/h at a uniform rate of acceleration? a. 252 m b. 1.08 × 103 m c. 540 m d. 1.95 × 103 m
What value is calculated by dividing rise by run? a. the slope of a straight line b. acceleration of a moving object exhibiting uniform motion c. angular velocity d. length of a straight line
2.
Which of the following equations can be used to find the position of an object moving at constant velocity? a. d = d0 - vt b. Δd = d1 - d0 c. tan ϑ = Ry/Rx d. d = d0 + vt
3.
You drive a car for 2.0 h at 60 km/h, then for another 3.0 h at 85 km/h. What is your average velocity? a. 73 km/h b. 75 km/h c. 75 km/h2 d. - 73 km/h
4.
What is the minimum length runway needed to accommodate airplanes that can accelerate uniformly at 2.7 m/s2 and must reach a ground velocity of 64 m/s before they can take off? a. 1.5 × 102 m b. 1.5 × 103 m c. 7.7 × 102 m d. 7.7 × 103 m
5.
You and a friend leave school at the same time. You drive at a constant 55 km/h and your friend drives 70 km/h. How long does it take each car to reach a mall that is 25 km from the school? a. you: 1 hour 40 minutes, your friend 36 minutes b. you: 2.2 hours, your friend: 2.8 hours c. you: 22 minutes, your friend: 27 minutes d. you: 27 minutes, your friend: 22 minutes
6.
__________ means that equal displacements occur during successive equal time intervals.
a. Uniform acceleration b. Uniform motion c. Average speed d. Average acceleration 7.
You and a friend each walk 8.0 km. You walk at 6.4 km/h; your friend walks 8.1 km/h. How long will your friend wait for you at the end of the walk? a. 30 minutes b. 1.7 h c. 0.5 h d. 15 minutes
8.
A tennis ball is dropped from 1.5 m above the ground, touches the ground for 0.008 s and rebounds to a height of 0.75 m. What is the ball's velocity when it hits the ground? a. -5.4 m/s b. -3.8 m/s c. 3.8 m/s2 d. -5.4 m/s2
9.
Find the uniform acceleration that causes a car's velocity to change from 27 m/s to 45 m/s in a 6.0s period. a. 3.0 m/s b. 18.0 m/s2 c. 3.0 m/s2 d. 18.0 m/s
10. How far does a car travel in 30 s while its velocity is changing from 50 km/h to 80 km/h at a uniform rate of acceleration? a. 252 m b. 1.08 × 103 m c. 540 m d. 1.95 × 103 m
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