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- Multiple ChoicePlease save your changes before editing any questions.What is the displacement of an object at rest?0 m1 m9.8 m9.81 m
- Multiple ChoicePlease save your changes before editing any questions.What is velocity?The total distance traveled by an objectThe distance from start to end, including the directionHow fast an object travelsThe speed at which an object travels plus its direction
- Multiple ChoicePlease save your changes before editing any questions.In addition to displacement, which of the following must be used for a more complete description of the motion of an object?MetersKilogramsTimeDistance
- Multiple ChoicePlease save your changes before editing any questions.A dolphin can swim 1.85 km/h. How are far does the dolphin travel after 0.6 hours?0.63 km1.1 km2.5 km3.7 km
- Multiple ChoicePlease save your changes before editing any questions.
A trucker drives with an average velocity of 27 m/s towards the east on a perfectly straight highway. What will the trucker's displacement be after 2 minutes?
97 m; east
190 m; east
1600 m; east
3200 m; east
- Multiple ChoicePlease save your changes before editing any questions.What is acceleration?It is the displacement.It is the velocity.It is the rate of change of the displacement.It is the rate of change of the velocity.
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is NOT a valid unit for acceleration?m/s/sm/s2km/hr/seckm/hr
- Multiple ChoicePlease save your changes before editing any questions.What happens to an object's motion when the velocity is positive and the acceleration is negative?The object slows down.The object speeds up.The object remains at a constant velocity.The object remains at rest.
- Multiple ChoicePlease save your changes before editing any questions.A race car accelerates from 0 m/s to 30 m/s with a 45 m displacement. What is the vehicle's acceleration?2 m/s25 m/s210 m/s215 m/s2
- Multiple ChoicePlease save your changes before editing any questions.A curious kitten taps a ball of yarn at rest with its paw, displacing the ball of yarn 1.75 cm in 2 seconds. What is the acceleration of the ball of yarn?11 cm/s28.75 cm/s214.4 cm/s218.8 cm/s2
- Multiple ChoicePlease save your changes before editing any questions.Which of the following units are used to measure free fall?m/sm/s2m*sm2/s2
- Multiple ChoicePlease save your changes before editing any questions.Which of the following is a value for the acceleration of objects in free fall?4.905 m/s2-4.905 m/s29.81 m/s2-9.81 m/s2
- Multiple ChoicePlease save your changes before editing any questions.What is another name for free fall acceleration?DisplacementGravitational AccelerationInstantaneous AccelerationNegative Velocity
- Multiple ChoicePlease save your changes before editing any questions.Which would fall with greater acceleration in a vacuum, a leaf or a stone?LeafStoneThe would accelerate at the same rate.It is difficult to determine without more information.
- Multiple ChoicePlease save your changes before editing any questions.
The slope on a position vs time graph represents
displacement
velocity
acceleration
cannot be determined
- Multiple ChoicePlease save your changes before editing any questions.
The slope on a velocity vs time graph represents
displacement
velocity
acceleration
cannot be determined
- Multiple ChoicePlease save your changes before editing any questions.
The area "under" the curve on a velocity vs time graph represents
displacement
velocity
acceleration
cannot be determined
- Multiple ChoicePlease save your changes before editing any questions.
What is the velocity of a projectile at the top of the path?
0 m/s
-9.81 m/s2
9.81 m/s2