Grade 11 Forces Worksheet | Homework Practice

Grade 11 Physics Worksheet: Forces

Forces Homework Practice

Grade 11 Physics Forces Homework Practice Very Easy 30 Questions 13 Views
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Grade 11 Physics Worksheet: Forces
Classroom Worksheet

Grade 11 Physics Worksheet: Forces

Forces Homework Practice

Name____________________________
Date________________
Score______ / 30
Grade: Grade 11
Subject: Physics
Topic: Forces
Time: 20 Minutes
Difficulty: Very Easy
Questions: 30
Instructions:
Answer all questions neatly. Show your work for any question that needs calculation. Use the correct units in your answers. Start with the easier questions and work carefully through the set.
Skills Practiced:
  • Forces
  • Physics
  • Critical Thinking
  • Problem Solving
1Question
What is a force?
2Question
Name the SI unit of force.
3Question
State one effect a force can have on an object.
4Question
Is force a scalar or a vector quantity?
5Question
What force pulls objects toward Earth?
6Question
What is the force called that acts between two surfaces in contact and opposes motion?
7Question
What force is exerted by a stretched or compressed spring?
8Question
What is the name of the force exerted by a rope or string when it is pulled tight?
9Question
What is the force acting on an object due to gravity called?
10Question
Write the formula for weight.
11Question
If a force of 10 N is applied to an object to the right, in which direction does the force act?
12Question
If two equal forces act in opposite directions on an object, what is the resultant force?
13Question
An object has a mass of 2 kg. What is its weight on Earth? Use g = 10 N/kg.
14Question
An object has a mass of 5 kg. What is its weight on Earth? Use g = 10 N/kg.
15Question
A force of 8 N to the left and a force of 3 N to the right act on an object. What is the resultant force?
16Question
A force of 12 N to the right and a force of 12 N to the left act on an object. What is the resultant force?
17Question
A force of 15 N acts on an object. If the opposite force is 9 N, what is the resultant force and direction?
18Question
What does it mean when forces are balanced?
19Question
What does it mean when forces are unbalanced?
20Question
A book rests on a table. Name the two forces acting vertically on the book.
21Question
A student pushes a box, but the box does not move. What does this suggest about the forces on the box?
22Question
If the resultant force on an object is zero, what happens to its motion?
23Question
If the resultant force on an object is not zero, what can happen to its motion?
24Question
A 4 kg object is on Earth. Calculate its weight. Use g = 10 N/kg.
25Question
A 7 kg object is on Earth. Calculate its weight. Use g = 10 N/kg.
26Question
A force of 20 N acts to the right and a force of 13 N acts to the left. What is the resultant force?
27Question
A force of 18 N acts upward and a force of 5 N acts downward. What is the resultant force?
28Question
A box experiences 9 N of friction to the left and 14 N of pushing force to the right. What is the resultant force?
29Question
Why does friction make it harder to move an object across the floor?
30Question
A 3 kg object has a weight of 30 N. What is the gravitational field strength used in this calculation?

Answer Key

#Answer
1A push or a pull on an object.
2Newton (N).
3It can change the object's motion or shape.
4Vector quantity.
5Gravity.
6Friction.
7Spring force (elastic force).
8Tension.
9Weight.
10Weight = mass × gravitational field strength, or W = mg.
11To the right.
120 N.
13W = mg = 2 × 10 = 20 N.
14W = mg = 5 × 10 = 50 N.
155 N to the left.
160 N.
176 N in the direction of the 15 N force.
18The forces are equal in size and opposite in direction, so the resultant force is zero.
19The forces do not cancel out, so there is a non-zero resultant force.
20Weight downward and normal reaction force upward.
21The forces are balanced.
22It stays at rest or continues moving at constant velocity.
23Its speed or direction can change.
24W = 4 × 10 = 40 N.
25W = 7 × 10 = 70 N.
267 N to the right.
2713 N upward.
285 N to the right.
29Friction acts opposite the motion and resists movement.
3010 N/kg.
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