Lesson 3.03p
3.03p Resultant of forces Quiz: OCR Maths, Unit 18
20 questions
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Lesson 3.03p, Resultant of forces: 20 multiple choice questions for the OCR Maths (H240), Unit 18: Forces and Newton's Laws, written with Revision Ninja.
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The 20 questions
-
Which vector quantity always acts in the exact same direction as acceleration?
- Position vector
- Velocity vector
- Displacement vector
- Resultant force
-
Which vector quantity always indicates the instantaneous direction of motion of a particle?
- Velocity vector
- Resultant force
- Displacement vector
- Acceleration vector
-
What is the resultant of forces F1 = (2i + 3j) N and F2 = (4i - j) N?
- (6i + 2j) N
- (8i - 3j) N
- (6i + 4j) N
- (2i + 4j) N
-
What is the magnitude of the force vector F = (3i - 4j) N?
- 25 N
- 1 N
- 5 N
- 7 N
-
What single force represents the combined vector sum of all forces acting at a point?
- Resultant force
- Normal reaction
- Equilibrium force
- Frictional force
-
What is the horizontal component of a 10 N force acting at 30 degrees to the horizontal?
- 10.0 N
- 8.66 N
- 7.07 N
- 5.00 N
-
What is the vertical component of a 10 N force acting at 30 degrees to the horizontal?
- 10.0 N
- 8.66 N
- 5.00 N
- 2.50 N
-
What is the resultant force acting on a particle moving at a constant velocity?
- Maximum force
- Constant force
- Increasing force
- Zero force
-
A particle of mass 2 kg experiences a resultant force of (6i + 8j) N. What is its acceleration?
- (4i + 6j) m/s^2
- (3i + 4j) m/s^2
- (12i + 16j) m/s^2
- (8i + 10j) m/s^2
-
What angle does the resultant force vector F = (i + j) N make with the positive x-axis?
- 90 degrees
- 60 degrees
- 30 degrees
- 45 degrees
-
A particle is in equilibrium under three forces: (3i - 5j) N, (-i + 2j) N, and F. What is F?
- (4i - 7j) N
- (-2i + 3j) N
- (-4i + 7j) N
- (2i - 3j) N
-
What is the magnitude of the resultant of two perpendicular forces of 6 N and 8 N?
- 48 N
- 10 N
- 14 N
- 2 N
-
Which mathematical operation is performed on force vectors to find their resultant?
- Vector addition
- Cross product
- Dot product
- Vector multiplication
-
Two collinear forces of 12 N and 5 N act in opposite directions. What is their resultant magnitude?
- 7 N
- 17 N
- 13 N
- 60 N
-
Two collinear forces of 12 N and 5 N act in the same direction. What is their resultant magnitude?
- 7 N
- 17 N
- 60 N
- 13 N
-
What is the resultant of three forces: (i + 2j) N, (2i - j) N, and (-3i - 4j) N?
- (-1i - 3j) N
- (0i - 3j) N
- (0i + 3j) N
- (6i - 3j) N
-
When the resultant of all forces acting at a point is zero, the system is in what state?
- Uniform acceleration
- Rotational motion
- Mechanical equilibrium
- Terminal velocity
-
A 5 kg mass experiences a resultant force of (9i + 12j) N. What is its acceleration magnitude?
- 5 m/s^2
- 15 m/s^2
- 21 m/s^2
- 3 m/s^2
-
What is the magnitude of the force vector F = (-5i + 12j) N?
- 17 N
- 169 N
- 13 N
- 7 N
-
What angle does the force vector (4i + 3j) N make with the positive y-axis?
- 53.1 degrees
- 45.0 degrees
- 60.0 degrees
- 36.9 degrees
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