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- Multiple ChoicePlease save your changes before editing any questions.
Motion's first equation is.
v=u+at
u=v+at
a=ut+v
t=u+vt
- Multiple ChoicePlease save your changes before editing any questions.Which force produces a change in motion?unbalanced forcebalanced forcegravitational forcefrictional force
- Multiple ChoicePlease save your changes before editing any questions.
If these boys are pulling with the same amount of force. What will happen?The boy in blue will win.They will not move at all.The boy in red will win.Both will fall down. - Multiple ChoicePlease save your changes before editing any questions.Friction and gravity are both examples of a force.TrueFalse
- Multiple ChoicePlease save your changes before editing any questions.Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?feathersironsamedepends on their friction
- Multiple ChoicePlease save your changes before editing any questions.The picture of the position vs. time graph shows an object that is...accelerating/speeding upmoving at a constant speednot movingaccelerating/slowing down.
- Multiple ChoicePlease save your changes before editing any questions.What is Newton's First Law known as? The Law ofFrictionMassInertiaGravity
- Multiple ChoicePlease save your changes before editing any questions.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?
Same
0.78 kg
o.52 kg
None
- Multiple ChoicePlease save your changes before editing any questions.If an action force is a cue ball (white) hitting a billiard ball (various colors) when playing pool, then the reaction force isexerted on the tableexerted on all the other billiard balls.not presentexerted by the billiard ball on the cue ball.
- Multiple ChoicePlease save your changes before editing any questions.
In which direction and with how much force will an object move if you push to the left with 15N of force and your friend pushes to the right with 5N of force?
up with 10N of force
down with 5N of force
left with 10N of force
right with 10N of force
- Multiple ChoicePlease save your changes before editing any questions.Objects tendency to resist changeFrictionInertiaForceGravity
- Multiple ChoicePlease save your changes before editing any questions.Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.The Law of InertiaThe Law of AccelerationThe Law of Conservation of Momentum
- Multiple ChoicePlease save your changes before editing any questions.Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more mass and requires more force to accelerate.Newton's 1st LawNewton's 2nd LawNewton's 3rd Law
- Multiple ChoicePlease save your changes before editing any questions.This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?Newton's 1st LawNewton's 2nd LawNewton's 3rd Law
- Multiple ChoicePlease save your changes before editing any questions.A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.2.2m/s27.0m/s25.7m/s270m/s2