Introduction to Forces Answers
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If forces acting on an object are unbalanced, the object could experience a change in ________.
A
mass, speed, or directionB
negative acceleration or massC
direction, mass, or bothD
speed, direction, or both2
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The table represents the forces on four objects, with directions.ObjectF1 ↑F2 →F3 ←F4 ↓W30 N20 N20 N30 NX15 N35 N25 N15 NY60 N0 N0 N60 NZ45 N0 N22 N45 N
A
Objects W and X have balanced forces, and objects Y and Z have unbalanced forces.B
Objects W and Y have balanced forces, and objects X and Z have unbalanced forces.C
Objects X and Y have balanced forces, and objects W and Z have unbalanced forces.D
Objects X and Z have balanced forces, and objects W and Y have unbalanced forces.3
Jasper and Gemma are going to play on a teeter totter. Gemma gets on first. When Jasper gets on, Gemma moves into the air, but she does not move to the top.
A
The forces are balanced because Jasper weighs the same as Gemma.B
The forces are unbalanced because Jasper weighs the same as Gemma.C
The forces are balanced because Jasper weighs more than Gemma.D
The forces are unbalanced because Jasper weighs more than Gemma.4
Which is the best example of forces acting in the same direction?
A
a boy lifting his chest off the ground during a pushupB
two football players pushing a tackling sledC
a person pulling out a garden hose from its reelD
two dogs playing tug-of-war with a ropeDid you find these answers helpful?
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