An ice cube has less friction than a sponge
Less. Firework spark is generated by fuse friction, ice by freezing water and the water expands.
Less dense
Rubber has more friction than an ice cube. Ice has almost no friction what so ever.
an ice cube cannot sink in water because its density is less than that of water. this is because of the air bubbles trapped inside; that make the ice cube less dense than water.
Ice is less dense than water.
because its ice.
An ice cube sinks in alcohol because alcohol is less dense than water. The ice cube, being made of frozen water, has a higher density than alcohol, causing it to sink in the less dense liquid.
An ice-hockey puck has less friction than a ball rolling on the ground because ice surfaces are smoother and provide less resistance compared to the irregularities on the ground that increase friction. Additionally, the material of the ice-hockey puck and the ice surface are designed to have low friction properties to allow for smoother and faster movement on the ice.
Ice cubes float in water because they are less dense than liquid water. When water freezes, it forms a rigid crystalline structure that spaces out the water molecules, making the ice cube less dense and causing it to float on the denser liquid water.
An ice cube will not float in air because air has a lower density than ice, making it less buoyant. Ice is less dense than water, which allows it to float in water due to buoyancy. In air, the buoyant force is not strong enough to support the weight of the ice cube, so it will not float.
A sea water ice cube would melt faster than a normal ice cube because sea water has a lower freezing point due to the presence of salt. This means that it would require less heat energy to melt the sea water ice cube compared to a normal ice cube.
Sledding on snow, ice skating, and sliding on a playground slide are activities that work better with less friction.