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WorksheetsForce and Motion Review
Total questions: 20
Worksheet time: 40mins
A 1,100kg car comes to a stop. If the vehicle is accelerating at -1.2 m/s2, which force is closest to the net force acting on the vehicle?
- 9,600 N
- 1,300 N
- 900 N
An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 m/s2 to reach a speed of 50 m/s2 as it left the bow. During the ACCELERATION, what was the net force on the arrow to the nearest Newton?
300 N
3 N
83,333 N
Which of these best describes why the leaf fell in a crooked path instead of straight down?
Objects with irregular shapes always fall in crooked paths
Air currents and gravity applied changing and unbalanced forces to the leaf
Once the leaf was in motion, it continued moving in the same direction, because the forces were balanced
An action-reaction pair of forces exists between
the person's feet and the rope
the rope and the balancing bar
the two ends of the rope
Four boxes are sliding with constant speed before each box experiences an unbalanced force of 8N. Which box would experience the greatest acceleration when the unbalanced force is applied?
The box with a mass of 6 kg
The box with a mass of 4 kg
The box with a mass of 2 kg
If the load exerts a strong downward force, the glue
destroys the force
causes the load to decelerate
exerts an upward force that is equal to the downward force
Two forces are applied to a 17kg box. Which best describes the acceleration of the box?
The box accelerates to the left, because the combined forces cause the box to accelerate.
The box accelerates to the right because the net force is 17 N to the right
The box does not accelerate, because the force isn't large enough
The total mass of the cyclist and the bicycle is 100 kg. What is the acceleration of the cyclist?
0.66 m/s2 backward, because the force of the air slows the cyclist
2.3 m/s2 forward, because the cyclist's inertia is greater than the force of the air
0.66m/s2 forward, because the applied force is greater than the force of the air
A change in an object's velocity always indicates that
the object has no inertia
unbalanced forces are acting on the object
balanced forces are acting on the object
Which object in the diagram above is acted on by a net force of 5 N to the right?
While practicing in a simulator, an astronaut experienced an acceleration of 26 m/s2. The astronaut's mass was 63.0 kg. In Newtons, what force did the astronaut experience?
1638
37
42,588
This chair was sitting still before the forces shown in the diagram acted on it. Describe the chair's motion as a result of these forces.
The chair begins moving upwards
The chair does not move
The chair begins to move to the right
What is the net force acting on the rope?
0 N
20 N to the right
20 N to the left
The illustration shows a ball. If you want the ball to move in the direction indicated by the arrow, from which direction should the force come?
At point 4
At point 1
Between points 2 and 3
Study the forces acting on the box. What question could be investigated using this experimental set-up?
How do action-reaction forces affect an object's velocity?
How is energy changed from one form to another?
How do unbalanced forces affect motion?
The diagram shows several forces acting in different directions on an object. If the forces acting on the object are balanced, what is the value of the unknown force?
5
7
17
What is the magnitude of the force in Newtons that is exerted on a 20 kg mass to give it an acceleration of 8.0 m/s2?
160 N
2.5 N
16 N
Safety restraints are needed in vehicles to stop the forward motion of the driver and passengers when the vehicle comes to a sudden stop. What explains this?
Gravity
Intertia
Acceleration
A book remains motionless on your desk. What best explains why the book remains at rest?
There are no forces acting on the book
The only force acting on the book is pushing it downward
The forces acting on the book are balanced
When a rocket launches, the rocket’s thrusters push the exhaust gases downward. At the same time, the exhaust gases push the shuttle upward. A student drew arrows to model these action-reaction forces. How could the model of the action-reaction forces be improved?
Showing both forces pointing upwards
Make the forces equal
Add another arrow for the force of friction
