1. Which expression is dimensionally consistentwithan expression that would yield a valuefortime-1?(v is velocity, xisdistance, and t is time)
a.v/x
b.v2/x
c.x/t
d.v2t
2. On planet Z, the standard unit of length isthefoose. Ann the Astronaut is 5.90 feet tall on earth. She landsonplanet Z and is measured to be 94 foosi tall. Her partnerRachaelis 88 foosi tall. How tall is Rachael on Earth?
a.5.2 feet
b.5.5 feet
c.5.8 feet
d.6.3 feet
3. A cheetah can maintain its maximum speed of100km/hr for 30.0 seconds. What minimum distance must agazellerunning 80.0 km/hr be ahead of the cheetah to escape?
a. 100 m
b. 167 m
c. 70.0 m
d. 83.0 m
4. The distance of the Earth from the sun is 93 000 000miles. Ifthere are 3.15 ´ 107 s in one year, findthe speed of theEarth in its orbit about the sun.
a. 9.28 miles/s
b. 18.6 miles/s
c. 27.9 miles/s
d. 37.2 miles/s
5. A European sports car dealer claims that his carwillaccelerate at a constant rate from rest to 100 km/hr in 8.00 s.Ifso, what is the acceleration? (Hint: First convertspeedto m/s.)
a. 3.47 m/s2
b. 6.82 m/s2
c. 11.4 m/s2
d.17.4 m/s2
6. A vehicle designed to operate on a drag strip acceleratesfromzero to 30 m/s while undergoing a straight line pathdisplacement of45 m. What is the vehicleâs acceleration ifits value may be assumedto be constant?
a. 2.0 m/s2
b.5.0 m/s2
c. 10 m/s2
d.15 m/s2
7. A rock is thrown straight up with an initial velocity of19.6m/s. What time interval elapses between the rockâs beingthrownand its return to the original launch point? (Accelerationdue togravity is 9.80 m/s2.)
a.4.00 s
b.5.00 s
c.8.00 s
d.10.0 s
8. Vector is 3 m long and vector is 4 mlong. Thelength of the sum of the vectors must be:
a.5 m.
b.7 m.
c.12 m.
d.some value from 1 m to 7 m.
9. A string attached to an airborne kite is maintained atanangle of 40° with the horizontal. If a total of 120 m of stringisreeled in while bringing the kite back to the ground, what isthehorizontal displacement of the kite in the process? (Assume thekitestring doesnât sag.)
a. 100 m
b. 84 m
c. 77 m
d. 92 m
10. A baseball thrown fromtheoutfield is released from shoulder height at an initial velocityof29.4 m/s at an initial angle of 30.0° with respect tothehorizontal. What is the maximum vertical displacement that theballreaches during its trajectory?
a. 11.0 m
b. 9.80 m
c. 22.1 m
d. 44.1 m
11. A stone is thrown at an angle of 30° above thehorizontalfrom the top edge of a cliff with an initial speed of 12m/s. A stopwatch measures the stoneâs trajectory time fromtop of cliff tobottom to be 5.6 s. What is the height of thecliff? (g =9.8 m/s2 and air resistance isnegligible)
a. 58 m
b. 154 m
c. 120 m
d. 197 m
12. An astronaut applies aforceof 500 N to an asteroid, and it accelerates at7.00m/s2. What is the asteroidâs mass?
a. 71 kg
b. 135 kg
c. 441 kg
d. 3 500 kg
13. Two forces act on a 6.00-kg object. One of the forces is10.0N. If the object accelerates at 2.00 m/s2, what isthegreatest possible magnitude of the other force?
a.1.0 N
b.2.0 N
c.22.0 N
d. 34.0 N
14. An airplane of mass 1.2 ´ 104 kg tows aglider ofmass 0.6 ´ 104 kg. The airplanepropellers provide a netforward thrust of 3.6 ´104 N. What is the gliderâsacceleration?
a. 2.0 m/s2
b. 3.0 m/s2
c. 6.0 m/s2
d. 9.8 m/s2
15. As a 3.0-kg bucket is being lowered into a 10-m-deepwell,starting from the top, the tension in the rope is 9.8 N.Theacceleration of the bucket will be:
a. 6.5 m/s2 downward.
b. 9.8 m/s2 downward.
c. zero.
d. 3.3 m/s2 upward.
1. Which expression is dimensionally consistentwithan expression that would yield a valuefortime-1?(v is velocity, xisdistance, and t is time)
a.v/x
b.v2/x
c.x/t
d.v2t
2. On planet Z, the standard unit of length isthefoose. Ann the Astronaut is 5.90 feet tall on earth. She landsonplanet Z and is measured to be 94 foosi tall. Her partnerRachaelis 88 foosi tall. How tall is Rachael on Earth?
a.5.2 feet
b.5.5 feet
c.5.8 feet
d.6.3 feet
3. A cheetah can maintain its maximum speed of100km/hr for 30.0 seconds. What minimum distance must agazellerunning 80.0 km/hr be ahead of the cheetah to escape?
a. 100 m
b. 167 m
c. 70.0 m
d. 83.0 m
4. The distance of the Earth from the sun is 93 000 000miles. Ifthere are 3.15 ´ 107 s in one year, findthe speed of theEarth in its orbit about the sun.
a. 9.28 miles/s
b. 18.6 miles/s
c. 27.9 miles/s
d. 37.2 miles/s
5. A European sports car dealer claims that his carwillaccelerate at a constant rate from rest to 100 km/hr in 8.00 s.Ifso, what is the acceleration? (Hint: First convertspeedto m/s.)
a. 3.47 m/s2
b. 6.82 m/s2
c. 11.4 m/s2
d.17.4 m/s2
6. A vehicle designed to operate on a drag strip acceleratesfromzero to 30 m/s while undergoing a straight line pathdisplacement of45 m. What is the vehicleâs acceleration ifits value may be assumedto be constant?
a. 2.0 m/s2
b.5.0 m/s2
c. 10 m/s2
d.15 m/s2
7. A rock is thrown straight up with an initial velocity of19.6m/s. What time interval elapses between the rockâs beingthrownand its return to the original launch point? (Accelerationdue togravity is 9.80 m/s2.)
a.4.00 s
b.5.00 s
c.8.00 s
d.10.0 s
8. Vector is 3 m long and vector is 4 mlong. Thelength of the sum of the vectors must be:
a.5 m.
b.7 m.
c.12 m.
d.some value from 1 m to 7 m.
9. A string attached to an airborne kite is maintained atanangle of 40° with the horizontal. If a total of 120 m of stringisreeled in while bringing the kite back to the ground, what isthehorizontal displacement of the kite in the process? (Assume thekitestring doesnât sag.)
a. 100 m
b. 84 m
c. 77 m
d. 92 m
10. A baseball thrown fromtheoutfield is released from shoulder height at an initial velocityof29.4 m/s at an initial angle of 30.0° with respect tothehorizontal. What is the maximum vertical displacement that theballreaches during its trajectory?
a. 11.0 m
b. 9.80 m
c. 22.1 m
d. 44.1 m
11. A stone is thrown at an angle of 30° above thehorizontalfrom the top edge of a cliff with an initial speed of 12m/s. A stopwatch measures the stoneâs trajectory time fromtop of cliff tobottom to be 5.6 s. What is the height of thecliff? (g =9.8 m/s2 and air resistance isnegligible)
a. 58 m
b. 154 m
c. 120 m
d. 197 m
12. An astronaut applies aforceof 500 N to an asteroid, and it accelerates at7.00m/s2. What is the asteroidâs mass?
a. 71 kg
b. 135 kg
c. 441 kg
d. 3 500 kg
13. Two forces act on a 6.00-kg object. One of the forces is10.0N. If the object accelerates at 2.00 m/s2, what isthegreatest possible magnitude of the other force?
a.1.0 N
b.2.0 N
c.22.0 N
d. 34.0 N
14. An airplane of mass 1.2 ´ 104 kg tows aglider ofmass 0.6 ´ 104 kg. The airplanepropellers provide a netforward thrust of 3.6 ´104 N. What is the gliderâsacceleration?
a. 2.0 m/s2
b. 3.0 m/s2
c. 6.0 m/s2
d. 9.8 m/s2
15. As a 3.0-kg bucket is being lowered into a 10-m-deepwell,starting from the top, the tension in the rope is 9.8 N.Theacceleration of the bucket will be:
a. 6.5 m/s2 downward.
b. 9.8 m/s2 downward.
c. zero.
d. 3.3 m/s2 upward.
Unlock all answers
