Wireless Motion+ cart
The CMA Wireless Motion+ cart is a durable, low-friction aluminum measuring cart designed for physics experiment in f.e. mechanics.
This smart cart can be used to influence motion, forces, and energy. The Motion+ cart is equipped with real-time sensors that measure the cart's position, velocity, acceleration, angular velocity, and applied force in real time.
The cart uses Bluetooth communication to transmit the measured data. To use the Motion+ measuring cart, you need the Coach software.
The cart can be used independently or in combination with the CMA Dynamic Track, which must be ordered separately (item no. W54TRACK).
The sensors can be used wirelessly via Bluetooth with the Coach 7 or Coach 7 Lite programs/apps on computers (Windows and Mac), Chromebooks, and mobile devices (Android and iOS).
The Motion+ cart sensor has four built-in sensors:
- Magnetic rotation encoder, which measures speed and position
- Force sensor, which measures the force on the Motion+ cart during collisions
- 3-axis accelerometer to measure acceleration
- 3-axis gyroscope to measure angular velocity
Technical specifications:
- Measurement ranges:
- Speed: -3 to 3 m/s
- Force: -100 to 100 N
- Acceleration (3 directions): -16 to 16 g
- Angular velocity (3 directions): -500 to 500°/s
- Warranty: 36 months
- Material: Anodized aluminum
- Weight: 500g
- Operating conditions: -20 to 60°C, max. 85% RH
- Maximum sampling rate: 100 Hz
- Battery life: 4 hours when fully charged (rechargeable)
- Connectivity: Bluetooth 5, Low Energy (Mac, Android, iOS) Bluetooth 2.1, Classic (Windows)
Full sensor specifications can be found in the Product Manual, see Downloads.
Suggested experiments with one Motion+ cart:- Study motion by measuring position, velocity, and acceleration
- Measure acceleration on inclined planes to explore gravitational force and friction
- Newton’s Second Law: Investigate the relationship between force, mass, and acceleration
- Measure impulse and compare it to changes in momentum
- Hooke’s Law: Use a spring to measure displacement and find the spring constant
- Study static and kinetic friction on different surfaces
- Explore potential and kinetic energy by rolling the cart down an incline
- Perform experiments with spring plunger-triggered kinetic and potential energy transformations
- Study circular motion by attaching the cart to a rotating platform
Suggested additional experiments with two Motion+ carts:- Newton’s Third Law: Study action and reaction forces in collisions
- Perform collision experiments to observe and calculate momentum conservation in elastic and inelastic collisions
- Study how kinetic energy is conserved or transformed in different types of collisions