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Total questions: 22
Worksheet time: 17mins
At what point is vy= 0 m/s?
A
B
C
D
None of these points
Which vector pair (arrow pair) correctly represents the acceleration and velocity at point P?
Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground first?
A
B
Both at the same time
What is the horizontal acceleration of a projectile?
0 s2m
-9.8 s2m
A basketball that is thrown to the ring follows a path that is ______________.
hyperbolic
parabolic
linear
circular
What happens to the horizontal velocity of a projectile as it travels along the curved path?
increases
decreases
stays the same
none of these
What happens to the vertical velocity of a projectile as it goes up?
increases
decreases
stays the same
none of these
What happens to the vertical velocity of a projectile as it goes down?
increases
decreases
stays the same
none of these
What is the vertical acceleration of a projectile due to gravity?
-9.0 m/s
-9.8 m/s
-9.8 m/s2
-9.08 m/s2
If you throw a baseball straight up, what is its velocity at the highest point?
about 10 m/s2
about 10 m/s
0 m/s2
0 m/s
An object at rest stays at rest or an object in motion stays in motion until unbalanced forces act upon it.
The tendency of a physical object to remain still or continue moving, unless force is applied.
Forces on an object that cause change in the motion of the object.
Unbalanced force
A push or pull that can change the motion of an object.
Newton's law that states that for every action there is an equal and opposite reaction.
1st law
2nd law
3rd law
As the fuel in a rocket ignites, the force of the gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
A swimmer pushes water back with her arms, but her body moves forward.
1st law
2nd law
3rd law
