Mystery Science - Forces & Motion

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

What is a bridge?

Back

A bridge is a structure built to span a physical obstacle, like a river or road, to provide passage.

Tags

CCSS.RI.2.2

CCSS.RI.3.2

CCSS.RL.2.2

CCSS.RL.3.2

CCSS.RL.4.2

Front

What is a pillar bridge?

Back

A pillar bridge is supported by vertical columns or pillars.

Front

What is an arch bridge?

Back

An arch bridge uses a curved structure to support the weight above it.

Front

What is a suspension bridge?

Back

A suspension bridge is held up by cables that are suspended between towers.

Front

What does it mean for a bridge to sag?

Back

To sag means to bend downwards due to weight or pressure.

Tags

CCSS.RI.2.4

CCSS.RI.3.4

CCSS.RI.4.4

CCSS.RL.3.4

CCSS.RL.4.4

Front

What is the purpose of supports in a bridge?

Back

Supports help hold up the bridge and keep it stable.

Front

What is the effect of weight on a bridge?

Back

More weight can cause a bridge to sag or collapse if it is not designed to hold it.