Worksheets8.6A Unbalanced Forces
Total questions: 14
Worksheet time: 1hrs 10mins
Which of the following conclusions is based on the data in the table?
There is no pattern between balanced and unbalanced forces
Balanced forces are equal and opposite in direction, while unbalanced forces are different sizes in the same or opposite directions
Forces are always equal and opposite in direction for both balanced and unbalanced forces
Balanced forces are different sizes in the same or opposite direction, while unbalanced forces are equal and opposite in direction
A car runs out of gas at a rd light, and someone begins to push the car forward with 10 N of force. The force of friction, opposing the forward motion, is 3 N. What happens to the speed and direction of the car?
The car will move forward with a force of 10 N with a constant speed
The car will move forward with a force of 7 N with an increasing speed
The car will move backward with a force of 10 N with an increasing speed
The car will move backward with a force of 7 N with a constant speed
A student rides his bike tot he park. He experiences an acceleration of 4.5 m/s2 during his bicycle ride. If the student and bike have a combined mass of 70 kg, what net force did he experience?
15.6 N
74.5 N
315 N
Not Here
A surfer is waiting for a wave. A wave comes and pushes the surfer towards the shore. Which statement best describes the motion of the surfer?
The surfer travels to the left. The speed increases due to net forces of 105 N.
The surfer travels to the right. The speed increases due to net force of 105 N.
The surfer travels to the left. The speed is constant due to net force of 105 N.
The surfer travels to the right. The speed is constant due to net force of 105 N.
A group of students determines how much force it will take to move a 0.1 kg disk. They pull the disk across different surfaces using a spring scale. The results are recorded above. With what acceleration did the disk move across the concrete?
23 m/s2
33.5 m/s2
67 m/s2
91 m/s2
Which example does NOT exhibit unbalanced forces?
→ 5 N and → 5 N
→ 5 N and ← 10 N
→ 10 N and ← 10 N
→ 10 N and → 10 N
A pinball machine requires a player to move flippers in order to move a ball. The flipper hits the ball with a force of 50 N. If the pinball, mass of 0.2 kg, moves across the frictionless surface, with what acceleration does the pinball move after the force is applied?
250 m/s2
10 m/s2
0.004 m/s2
50 m/s2
Which example does NOT demonstrate an unbalanced force causing a change in speed or direction of an object's motion?
Kicking a soccer ball
Picking up a box from the floor
Pushing a grocery cart
Relaxing in a recliner
According to the picture, what will happen to the motion of the toy truck?
The toy truck will stay in place
The toy truck will move left with a force of 16 N
The toy truck will move right with a force of 4 N
The toy truck will move right with a force of 16 N
How can the box increase its speed to the right?
Add a force to the left
Place the box on a rough surface
Add a force to the right
Add a force above the box
Object X is at rest until unbalanced forces are applied. Object X will
move right at a constant speed
move right at an increasing speed
move left at an increasing speed
None of the answers
A group of students applies different amounts of force to toy vehicles while investigating changes in the speed of the toy. Which piece of equipment would measure the force applied to the toy vehicle in each trial?
Psychrometer
Spring scale
Balance
Spectroscope
A student rides her scooter. The student has a mass of 40.0 kg and travels with a constant acceleration of 1.5 m/s2. What net force is the student experiencing?
26.7 N
0.0375 N
60.0 N
41.5 N
A car having a mass of 1750 kg travels 10 kilometers to the grocery store. Which mathematical expression can be used to calculate the acceleration if the car has a net force of 35,000 N acting on it?
35,000 N/1,750 kg
1,750 kg x 35,000 N
1,750 kg/35,000 N
1,750 kg + 35,000 N
