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Forces
Revision and exam practice for Forces.
33
Objectives
10
Flashcards
10
Questions
90 min
Study time
OcrGcseCombined Science A GatewayForces
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33 objective pages available
Measuring Distance and Time in Different Scenarios1 objectives
- Communicate the key features of the way to measure distance and time in a range of scenarios.
Measuring Distance and Time for Speed Calculations1 objectives
- Communicate the key features of the way to measure distance and time and use these to calculate speed.
Understanding Ratios, Proportions, and Rates in Science1 objectives
- Develop knowledge and skill in calculations using ratios and proportional reasoning to convert units and to compute rates.
Understanding Scalar and Vector Quantities in Motion1 objectives
- Account for the vector-scalar distinction as it applies to displacement and distance, velocity and speed.
Understanding Distance-Time and Velocity-Time Graphs1 objectives
- Develop knowledge and skill in changes and differences in motion to appropriate distance-time, and velocity-time graphs; interpret lines and slopes.
Interpreting Enclosed Areas on Velocity-Time Graphs (Higher)1 objectives
- Draw supported meaning from enclosed areas in velocity-time graphs.
Understanding Average Speed for Non-Uniform Motion1 objectives
- Work out average speed for non-uniform motion.
Understanding Motion: Distance, Time, Speed, and Acceleration1 objectives
- Use knowledge of formulae relating distance, time and speed, for uniform motion, and for motion with uniform acceleration.
Understanding Interacting Objects and Forces1 objectives
- Retrieve and apply knowledge of examples of ways in which objects interact.
Understanding Force Interactions Between Pairs of Objects1 objectives
- Communicate the key features of the way such examples involve interactions between pairs of objects which produce a force on each object.
Forces as Vectors: Understanding Direction and Magnitude1 objectives
- Develop knowledge and skill in forces as vectors.
Newton's First Law and Changes in Motion1 objectives
- Use knowledge of Newton’s first law to explain the motion of an object moving with uniform velocity and also an object where the speed and/or direction change.
Higher: Understanding Forces with Vector Diagrams: Resolution, Resultant, and Equilibrium1 objectives
- Apply vector diagrams to illustrate resolution of forces, a net force (resultant force), and equilibrium situations.
Forces on Isolated Solid Objects (Higher)1 objectives
- Communicate the key features of examples of the forces acting on an isolated solid object or system.
Understanding Resultant Forces and Free-Body Diagrams (Higher Tier)1 objectives
- Develop secure knowledge and application of describe, using free body diagrams, examples where two or more forces lead to a resultant force on an object
Understanding Balanced Forces and Free Body Diagrams (Higher)1 objectives
- Communicate the key features of using free body force diagrams the special case of balanced forces when the resultant force is zero (qualitative only).
Understanding Newton's Second Law of Motion: Force, Mass, and Acceleration1 objectives
- Use knowledge of Newton’s Second Law in calculations relating forces, masses and accelerations.
Inertia and Inertial Mass (Higher Tier)1 objectives
- Account for inertia is a measure of how difficult it is to change the velocity of an object and that the inertial mass is defined as the ratio of force over acceleration.
Understanding Momentum and Collisions (Higher)1 objectives
- Develop knowledge and skill in momentum and describe examples of momentum in collisions.
Work Done and Energy Transfer1 objectives
- Apply the relationship between work done, force, and distance moved along the line of action of the force and describe the energy transfer involved.
Understanding Energy and Energy Transfers1 objectives
- Work out relevant values of stored energy and energy transfers; convert between newton-metres and joules.
Understanding Power as the Rate of Energy Transfer1 objectives
- Develop secure knowledge and application of explain, with reference to examples, the definition of power as the rate at which energy is transferred
Understanding Newton's Third Law of Motion1 objectives
- Retrieve and apply knowledge of and apply Newton’s Third Law.
Understanding Velocity Change in Circular Motion (Higher)1 objectives
- Account for why an object moving in a circle with a constant speed has a changing velocity (qualitative only).
Deforming Objects: The Role of Multiple Forces1 objectives
- Develop secure knowledge and application of explain, that to stretch, bend or compress an object, more than one force has to be applied
Elastic and Plastic Deformation1 objectives
- Communicate the key features of the difference between elastic and plastic deformation (distortions) caused by stretching forces.
Force and Extension in Springs1 objectives
- Communicate the key features of the relationship between force and extension for a spring and other simple systems.
Linear and Non-Linear Relationships Between Force and Extension1 objectives
- Communicate the key features of the difference between linear and non-linear relationships between force and extension.
Understanding and Calculating Spring Constant (Hooke's Law)1 objectives
- Work out a spring constant in linear cases.
Work Done in Stretching an Elastic Material1 objectives
- Work out the work done in stretching.
Understanding Gravitational Fields and Attraction1 objectives
- Communicate the key features of all matter has a gravitational field that causes attraction, and the field strength is much greater for massive objects.
Understanding Weight and Gravitational Field Strength1 objectives
- Develop knowledge and skill in weight, describe how it is measured and describe the relationship between the weight of g an object and the gravitational field strength,.
Understanding Acceleration in Free Fall1 objectives
- Retrieve and apply knowledge of the acceleration in free fall.
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Practice preview
- Which statement accurately describes a linear relationship between force and extension?
- Explain, using an example, that forces always occur in pairs and act on different objects. Give one characteristic of these paired forces. [4 marks]
- A spring has an original length of 15 cm. When a 2 N force is applied, its length becomes 18 cm. What is the extension?
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