Kilograms.
A metre.
Newtons.
pounds
Newtons
grams
A metre.
tons
tons
You would use the metric unit "kilograms" to measure the weight of a bag of groceries.
You would use the unit of measurement called "kilograms" or "pounds" to measure the weight of a car.
You would use the metric unit "kilograms" to measure the weight of a sack of peaches.
Grams is the SI unit for weight
You would typically use a unit of weight, such as grams or ounces, to measure a cherry.
Newtons.
pounds
oz, lb, tons
A millinewton. NOT a gram, which a measure of mass, not of weight.