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Physics
8th -
9thgrade
Hooke's Law, Newton second law of motion, acceleration motio
10 questions
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- 1. Multiple ChoiceA change in velocity over time is called ___________.speedforceaccelerationdirection
- 2. Multiple Choice
Which two quantities are both vector quantities?
Force and speed
Speed and deceleration
Extension and Acceleration
Velocity and displacement
- 3. Multiple Choice
According to Hooke's law; Force is equal to -
Spring Constant × Extension
Spring Constant ÷ Extension
Spring Constant + Extension
- 4. Multiple Choice
A bungee rope has a spring constant of 5N/m. How much a person must weighs in Newton if we want it to extend (stretch) 10m?
20N
22N
50N
21N
- 5. Multiple Choice
A
B
C
D
- 6. Multiple Choice
A cyclist records his speed and the distance travelled during a journey. He then plots the data against time for different sections of his journey. Which graph shows a section when he is moving with constant speed?
A
B
C
D
- 7. Multiple Choice
A
B
C
D
- 8. Fill in the Blank
The velocity of an electric car changes as shown.
What is the acceleration of the car?
- 9. Multiple Choice
15000N and 25ms-2
15000N and 11m/s2
15000N and 10.52ms-2
15000N and 10ms-2
- 10. Multiple Choice
A car travels along a horizontal road at a constant speed. Three horizontal forces act on the car.The diagram shows two of these three forces.
What is the size and the direction of the third horizontal force acting on the car?
1200 N backwards
1200 N forwards
800N Forward
800 N backwards
- Answer choicesTagsAnswer choicesTags