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6. Which of the following is a vector quantity?
- Distance
- Acceleration
- Time
- Speed
7. The extension per unit length produced by tensile or compressive forces:
8. How many "suvat" equations of motion are there?
9. Describes a material that can easily be drawn into wires (e.g. copper):
- Ductile
- Brittle
- Components
10. Define torque (Unit: N m):
- A force that propels an object of mass 1kg to a speed of 1m per second.
- The product of one of the forces of a couple and the perpendicular distance between them.
- A pair of parallel forces equal in magnitude seperated by a distance.
11. Define inertia:
- An object will remain at rest or in a state of constant motion unless acted upon by an external force.
- The rate of change of an object's velocity.
- The mass per unit volume of a material.
12. Define a vector quantity:
- A vector quantity has both magnitude and direction.
- A vector quantity has magnitude but no direction.
13. Describes a material that shows no plastic deformation and breaks beyond its elastic limit:
14. Mass
- A measure of the amount of matter within an object.
- The force on an object caused by a gravitational field acting on it.
- How much an object weighs.
15. Define work done (Unit: J):
- The product of the force and the distance moved by the force in the direction of travel.
- The breaking stress of a material.
- The product of the power and the distance moved by the force in the direction of travel.
16. A term used to donate push or pull:
- Uniform motion
- Tensile
- Speed
17. Define a scalar quantity:
- A scalar quantity has magnitude but no direction.
- A scalar quantity has both magnitude and direction.
18. The force acting per unit cross-sectional area:
19. The sum of clockwise ..... about a point is equal to the sum of anticlockwise ..... about the same point.
- Moments
- Couples
- Strains
- Inertias
20. A force that squeezes an object:
- Equilibrium
- Compressive
- Tensile