# Force Meter

Develop a deeper understanding of forces, mass, weight, gravitation, vectors, and more with an easy to make force meter.

Curriculum Topics: Forces, Gravitation, Vectors

### Standards

Idea Sheets are cross-referenced to subjects listed in the Common Core, Next Generation Science Standards, and California Content Standards.

Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object & the mass of the object.||Next Generation Science Standards||Middle School||Physical Science||Motion and Stability: Forces and Interactions |||Analyze data to support the claim that Newton’s second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, & its acceleration. [Objects subject to a net unbalanced force, e.g., an object falling , rolling down a ramp, or a moving- pulled by a constant force.]||Next Generation Science Standards||High School||Physical Science||Motion and Stability: Forces and Interactions

2.a. A force has both direction and magnitude.||Grade 8||01. Physical Sciences||2. Forces||2. Unbalanced forces cause changes in velocity.|||2.b. When an object is subject to two or more forces at once, the effect is the cumulative effect of all the forces.||Grade 8||01. Physical Sciences||2. Forces||2. Unbalanced forces cause changes in velocity.|||2.c. When the forces on an object are balanced, the motion of the object does not change.||Grade 8||01. Physical Sciences||2. Forces||2. Unbalanced forces cause changes in velocity.|||2.d. How to identify separately two or more forces acting on a single static object, including gravity, elastic forces due to tension or compression in matter, and friction.||Grade 8||01. Physical Sciences||2. Forces||2. Unbalanced forces cause changes in velocity.|||2.e. When the forces on an object are unbalanced the object will change its motion (that is, it will speed up, slow down, or change direction).||Grade 8||01. Physical Sciences||2. Forces||2. Unbalanced forces cause changes in velocity.|||2.f. The greater the mass of an object the more force is needed to achieve the same change in motion.||Grade 8||01. Physical Sciences||2. Forces||2. Unbalanced forces cause changes in velocity.|||1.d. When one object exerts a force on a second object, the second object always exerts a force of equal magnitude and opposite direction. (Newton’s Third Law).||Grade 9-12||01. Physics||1. Motion and Forces||1. Newton’s laws predict the motion of most objects.|||1.e. The relationship between the universal law of gravitation and the effect of gravity on an object at the surface of the Earth.||Grade 9-12||01. Physics||1. Motion and Forces||1. Newton’s laws predict the motion of most objects.|||1.k.* How to solve two-dimensional problems involving balanced forces (statics). (achievement is optional)||Grade 9-12||01. Physics||1. Motion and Forces||1. Newton’s laws predict the motion of most objects.

Categories include:
• Physical Science