A visual measurement of impact created by collision against a stationary object. The car is fitted with a spring scale and slide that is displaced on impact. The slide remains in its displaced position until reset. The student can takes direct readings from the scale to measure the force. The top of the car is removable so additional weight can be added. A small screw-drive will be required when removing the top of the car to add weights (the screw-drive is not provided). Instructions included.