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WorksheetsMidterm Review Part II
Total questions: 10
Worksheet time: 5mins
A girl leaves a history classroom and walks 10. meters north to a drinking fountain. Then she turns and walks 30. meters south to an art classroom. What is the girl’s total displacement from the history classroom to the art classroom?
20. m south
20. m north
40. m south
40. m north
One car travels 40. meters due east in 5.0 seconds, and a second car travels 64 meters due west in 8.0 seconds. During their periods of travel, the cars definitely had the same
average velocity
total displacement
change in momentum
average speed
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
1.9 m/s2
2.2 m/s2
2.4 m/s2
3.8 m/s2
A ball thrown vertically upward reaches a maximum height of 30. meters above the surface of Earth. At its maximum height, the speed of the ball is
0.0 m/s
3.1 m/s
9.8 m/s
24 m/s
Which object has the most inertia?
a 0.001-kilogram bumblebee traveling at 2 meters per second
a 0.1-kilogram baseball traveling at 20 meters per second
a 5-kilogram bowling ball traveling at 3 meters per second
a 10.-kilogram sled at rest
A ball of mass M at the end of a string is swung in a horizontal circular path of radius R at constant speed V. Which combination of changes would require the greatest increase in the centripetal force acting on the ball?
doubling V and doubling R
doubling V and halving R
halving V and doubling R
halving V and halving R
A box is pushed toward the right across a classroom floor. The force of friction on the box is directed toward the
left
right
ceiling
floor
A 40.-kilogram mass is moving across a horizontal surface at 5.0 meters per second. What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds?
1.0 N
5.0 N
25 N
40. N
What is the speed of a 1.0 × 103-kilogram car that has a momentum of 2.0 × 104 kilogram•meters per second east?
5.0 × 10–2 m/s
2.0 × 101 m/s
1.0 × 104 m/s
2.0 × 107 m/s
If the speed of a car is doubled, the kinetic energy of the car is
quadrupled
quartered
doubled
halved
