Physical Science Benchmark #1 Review
- 1.If an object has kinetic energy, then it also must have _____.
- A.
Speed
- B.
Impulse
- C.
Acceleration
- D.
Force
- 2.An object that has kinetic energy must be _____.
- A.
Moving.
- B.
Falling.
- C.
At an elevated position.
- D.
At rest.
- 3.The formula to calculate work is W= F x d How much work was done is 5 N of force was used to move an object 25 meters?
- A.
30 Joules
- B.
125 Joules
- C.
5 Joules
- D.
20 Joules
- 4.The formula for calculating work = W= F x d A vehicle at the wrecking yard was pushed forward 7 meters with a force of 5000 N. How much work was done?
- A.
5007 J
- B.
4993 J
- C.
35000 J
- D.
714.2 J
- 5.The formula for calculating work is F x d A family car ran out of gas in the left lane of a busy street. The father got out of the car and tried to push the car to the gas station. He used about 600 N of force, but the car moved a distance of 0. How much work was done?
- A.
600 J
- B.
1200 J
- C.
300 J
- D.
0 J
- 6.According to the definition for work, in order for work to be accomplished their must be a force exerted on an object and
- A.
The object must move in the opposite direction of the applied force
- B.
The object must move in the same direction as the applied force
- C.
The object must be lifted up
- D.
The object must move a distance less than 100 meters
- 7.The formula for calculating work is W= F x d A pulley is used to lift a heavy piano 6 meters up to the second floor. The amount of force applied upward is 700 N. How much work was done?
- A.
706 J
- B.
4200 J
- C.
116.6 J
- D.
694 J
- 8.The formula for calculating work is W= F x d Jerry pulled the library cart 3 meters with a force of 17 N. How much work was done?
- A.
51 J
- B.
20 J
- C.
14 J
- D.
5.6 J
- 9.The formula for calculating work is W= F x d. A body builder lifts the barbell up 1 meter with a force of 501 N. Then He uses 501 N to hold the barbell in place for 2 minutes. How much work was done?
- A.
1002 J
- B.
501 J
- C.
500 J
- D.
250. 5 J
- 10.The ability to do work or cause change is...
- A.
Work
- B.
Gravity
- C.
Energy
- 11.The energy an object has while in motion is...
- A.
Elastic potential energy
- B.
Gravitational potential energy
- C.
Kinetic energy
- 12.Stored energy that results from the position or shape of an object is called...
- A.
Potential energy
- B.
Kinetic energy
- C.
Thermal energy
- 13.Calculate the momentum of a 700g ball that is rolling down a ramp at 4.6m/s.
- A.
3.22 kg x m/s
- B.
3,220 kg x m/s
- C.
152.17 kg x m/s
- D.
6.57 kg x m/s
- 14.If a force of 50N acts on a 5 kg object, its acceleration is equal to ______ meters per second squared.
- A.
55
- B.
45
- C.
250
- D.
10
- 15.The resistance an object has to a change in its motion is called ______________,
- A.
Equilbrium
- B.
Inertia
- C.
Momentum
- D.
Drag
- 16.3. If a total distance of 750 m is covered in a time interval of 25 s,the average speed is ______?
- A.
3,974 mph
- B.
3 mph
- C.
30 mph
- D.
30 m/s
- 17.6. If a person walked at 2 m/s for 12 s he/she would travel a distance of ________.
- A.
24 m
- B.
6 m
- C.
4 m
- D.
None of the answers
- 18.7. How long would it take to travel 50 km traveling at a speed of 10 km/hr?
- A.
3 hours
- B.
1 hour
- C.
5 hours
- D.
50 hours
- 19.The current in a circuit equals the voltage difference divided by the resistance.
- A.
Law of resistance
- B.
Law of compliance
- C.
Ohms Law
- D.
Conductivity Law
- E.
Static electricity
- 20.The net movement of electric charges in a singe direction.
- A.
Voltage difference
- B.
Electric current
- C.
Electric circuits
- D.
Batteries
- 21.A ____ ____ is related to the force that causes electric charges to flow.
- A.
Electric currents
- B.
Voltage difference
- C.
Dry cell batteries
- D.
Current flow
- 22.Voltage difference is measured in _____.
- A.
Amps
- B.
Electrodes
- C.
Volts
- D.
Centimeters
- 23.What is the unit for voltage?
- A.
Volts
- B.
Amperes
- C.
Ohms
- D.
Joules
- 24.What is the unit for current?
- A.
Volts
- B.
Amperes
- C.
Ohms
- D.
Joules
- 25.What is the unit for resistance?
- A.
Volts
- B.
Amperes
- C.
Ohms
- D.
Joules
Questions: 20 | Attempts: 15834 | Last updated: Oct 25, 2021
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